Powder screening device and powder wrapping table

The powder screening device comprises a powder screening box, a rotating brush shaft, a powder screening groove and a material receiving opening, a plurality of tooth-shaped silica gel brushes and a plurality of separation blades with notches are arranged on the rotating brush shaft, each separation blade is arranged between the tooth-shaped silica gel brushes, when the rotating brush shaft rotates, the tooth-shaped silica gel brushes and the separation blades are driven to rotate, and the powder screening groove and the material receiving opening are formed. The tooth-shaped silica gel brush brushes the powder screening holes in the powder screening groove and cleans the flour mixture on the powder screening holes, and when the flour mixture is swept by the tooth-shaped silica gel brush to move quickly, the blocking piece can effectively slow down the moving speed of the flour mixture, so that the good flour is not easy to screen away, and the powder screening accuracy and efficiency are improved. 本实用新型公开了一种