Axial flow fan

The utility model discloses an axial flow fan, relates to the technical field of fans, aims to solve the problem that an impeller of the fan is inconvenient to wipe, and adopts the technical scheme that the axial flow fan comprises a shell, a motor is arranged in the shell, the output end of the motor is connected with the impeller, and the bottom of the motor is provided with a sliding seat connected in the shell in a sliding manner; a pushing mechanism used for pushing the sliding base to extend out of the machine shell is arranged on the machine shell and comprises a sliding rod fixedly connected to the sliding base, a sliding way is formed in the side wall of the machine shell in the length direction, the end, away from the sliding base, of the sliding rod penetrates through the sliding way and extends out of the machine shell, and a holding piece is arranged at the end, located outside the machine shell, of the sliding rod. According to the axial flow fan, by arranging the pushing mechanism, the impeller