Cooling method and air cooling device of aircraft wheel

The invention relates to a cooling method and an air cooling device of an aircraft wheel. The air cooling device comprises a cooling disc and an air inlet joint, wherein the cooling disc and the air inlet joint are communicated by a flexible air ventilating pipe, the cooling disc is provided with an air exhaust nozzle, and the air exhaust nozzle is matched with the aircraft wheel; the cooling disc is fixedly arranged on the side surface of the aircraft wheel, and the air exhaust nozzle of the cooling disc faces an air ventilating hole of the aircraft wheel; the air inlet joint is communicated with a cold air source; the cold air is sent into the cooling disc through the air inlet joint and the air ventilating pipe, and is blown to the air ventilating hole of the aircraft wheel through the air exhaust nozzle, so as to realize the cooling function.