Anti-frosting air source heat pump fan

The utility model provides an anti-frosting air source heat pump fan, and belongs to the technical field of air source heat pump fans. Comprising a heat pump body, a fan mechanism is detachably connected to one side of the heat pump body, two symmetrically-arranged mounting covers, an anti-freezing assembly and a drying assembly are arranged in the fan mechanism, motors are fixed to the inner walls of the mounting covers, the anti-freezing assembly comprises an electric heater, a heating block and a cylindrical heat conduction block, and a plurality of connecting rods are fixedly welded to the outer wall of the heating block; the electric heater is fixed to the top of the mounting cover, the bottom of the electric heater is connected with a heating rod penetrating through the mounting cover to be communicated with the heating block, a circular hole is formed in the heating block, an annular block is arranged on the outer wall of the heat conduction block, an annular groove is formed in the inner wall of the c