Sieving mixing device for firework material

The invention discloses a sieving mixing device for a firework material. The sieving mixing device comprises a discharge hopper and a drum screen, wherein the discharge hopper is used for holding thematerial, and the drum screen is connected with a rotary driving mechanism; the rear end and the two sides of a discharge hole of the discharge hopper abut onto the outer surface of the drum screen toform seal fit capable of preventing the material from leaking; the front end of the discharge hole is provided with an outer pressing piece abutting on the outer surface of the drum screen; the outerpressing piece is used for extruding the material into the screen when the drum screen rotates; an inner pressing piece abutting on the inner surface of the drum screen is arranged in the drum screen; the inner pressing piece is used for extruding the material out of the screen when the drum screen rotates; and the outer pressing piece and the inner pressing piece are both fixedly arranged and donot rotate along with the d