Sorting device for zinc powder processing

The utility model discloses a sorting device for zinc powder processing in the technical field of zinc powder processing, which comprises a spiral conveyor and a net barrel, a net rack, a main shaft, a wind wheel connected to the main shaft and a discharge port arranged below the net barrel are arranged in the net barrel, the net rack comprises a barrel screen, a fixed longitudinal ring and a fixed transverse strip, and the fixed longitudinal ring and the fixed transverse strip are fixed on the inner wall of the barrel screen. The anti-blocking assembly comprises a knocking driven mechanism arranged on the fixed longitudinal ring and a driving wheel rod piece connected to the main shaft; the knocking driven mechanism comprises a swing part, a reset piece and a knocking part, the driving wheel rod piece drives the knocking part arranged at the other end of the swing part to make contact with the drum screen when passing through one end of the swing part, and the reset piece is located between one end of the sw