Screening device for metal silicon powder production

The utility model discloses a screening device for metal silicon powder production. The device comprises a bottom plate, a driving motor and a discharging box, fixing plates are mounted on the two sides of the top end of the bottom plate correspondingly. a guide rod is arranged on one side of each fixing plate; fixing frames are mounted on the opposite sides of the guide rods; a discharging hopperand a discharging box are mounted at the top end of the interior of the fixing frame; a feeding opening is formed in the top end of the discharging box; a first screening groove is formed in the discharging box through a sleeve in a sliding manner; a rotating motor is mounted at the bottom end of the first screening groove; and a screen is obliquely arranged at the bottom end of the interior of the discharging box, a second discharging port and a first valve are arranged at the lower end of the screen, a first discharging port is formed in the bottom end of the first screening groove, a firstmaterial guiding plate, a