The invention relates to an air compressor, comprising a cover body, an air tank and an air compression apparatus, wherein the air compression apparatus is mounted on the air tank and provided with the cover body externally. The air compression apparatus comprises a pedestal, a driving motor, a fan blade, an air pump and a wind scooper, wherein the driving motor drives the air pump and the fan blade, the air pump is equipped with an air inlet and an air outlet, and the wind scooper is provided with a cold air source inlet and a cold air source outlet and has a first wind scooper disposed along an axis of the motor and a second wind scooper deviated from the axis of the motor. The cold air source forms a first cold air flow and a second cold air flow after passing through the wind scooper,with the first cold air flow flowing along the axis of the driving motor and the second cold air flow flowing to the cold air source outlet. The air inlet is disposed in the direction of the cold airsource outlet. The air compressor compresses cold air through the air pump and accordingly reduces the working temperature of the air pump, and simultaneously realizes the heat dissipation of the airpump, the driving motor and other high temperature parts, thereby having a prolonged service lifetime.