The invention discloses a self-cooling type air suspension air compressor with an air storage function. The self-cooling type air suspension air compressor with the air storage function comprises a combined air compressor impeller, an air compressor volute, a cooling turbine, a heat pipe heat exchanger, an air storage cavity, an air bearing assembly, an air compressor shell and a direct current brushless motor. A rotor is coaxially connected with the combined air compressor impeller and the cooling turbine through a rotor core shaft. A thrust bearing assembly and a radial bearing assembly aresequentially arranged on the left side of the direct current brushless motor. The thrust bearing and the radial bearing are foil piece type hydrodynamic gas-lubricated bearings. According to the self-cooling type air suspension air compressor with the air storage function, high-pressure gas stored in the gas storage cavity is controlled to enter an air bearing assembly through the normally open electromagnetic valve during start-stop so as to prolong the time of a dynamic pressure gas film in the start-stop phase, thereby reducing the surface friction between the gas bearing and a rotating shaft to achieve the purpose of prolonging the service life of the gas bearing, and the self-cooling type air suspension air compressor with the air storage function has the advantages of large bearing capacity of the rotating shaft, less friction heat generation, more stable performance and the like by adopting a novel rotating shaft cooling mode.