Drop guiding device suitable for double-screw extruder

The falling guide device comprises a treatment box body, observation glass is arranged at the top of the treatment box body, an outlet is formed in the middle of the front side wall of the treatment box body, sliding grooves are formed in the left end and the right end of the front side wall of the treatment box body, and inserting grooves are formed in the left side wall and the right side wall of the treatment box body; a sealing plate is movably connected to the front side wall of the treatment box body, a first handle is fixedly connected to the front side wall of the sealing plate, sliding plates are fixedly connected to the left end and the right end of the rear side wall of the sealing plate, adjusting columns are arranged on the side walls, away from each other, of the two sliding plates, and the adjusting columns and the inserting grooves are matched for use. The device is provided with an outlet, a sliding groove, an inserting groove, a closing plate, a sliding plate and an adjusting column, a worke