My dryer started getting super hot had to watch it to keep the cloths from smelling scorched then it took over an hour to dry one load of cloths now it only blows straight cold air advice is welcomed I have 5 kids and two grandbabies and the clothsline is breaking me down

Here are your parts
Replacement parts for Maytag AED4475TQ1 29" ELECTRIC DRYER | AppliancePartsPros.com

See the attachment for the wiring diagram.

The unit actually has 2 thermal fuses thouhg they do not call both of them a fuse.

The thermal fuse (Item 23 in Section 3) will stop the unit from starting. The usual cause for it blowing is a clogged vent system.

The thermal cut-off (Item 6 in Section 3) (also a thermal fuse) will stop the unit from heating.
Below is more info on it if it is blown.

Check the heating coil.
Unplug the unit and both wires to the coil.
Check it with a meter, should be around 10 to 12 ohms.
Then check from each side of the coil to the case/frame, both should be infinite ohms (open). If not the coil may have sagged or broken and is touching the case. This can cause it to run on high and the thermostats cannot regulate it so the thermal cut-off blows.

The hi-limit should have regulated the temperature so the fuse did not blow, that is why there is a new one with the thermal cut-off..
Note: That unless there is another problem in the unit the hi-limit should never have to open. It is just a safety device with the fuse being a backup safety device.

Just in case it is not a grounded element.
With all the below the high limit will also have to be replaced.
Check that the belt is OK.
Check the seals (drum etc) in the unit. The air is pulled over the heating coils, through the drum and pushed out the exhaust. So any large seal leak will pull in room air and the cycling thermostat on the blower will run the unit hot.
Check that the lint filter is not coated with fabric softener residue which greatly reduces air flow.
Check/clean your vent system.
Check/clean the blower wheel.

If all OK you may want to replace the cycling thermostat as it's contacts may not be opening (welded shut)