Screening device convenient to clean

The utility model relates to the technical field of material screening devices, and discloses a material screening device convenient to clean, which comprises a material receiving box with an opening in the upper end, a matched screen frame is rotatably connected in the material receiving box, the outer frame wall of the screen frame is arc-shaped, a screen mesh is connected to the inner frame wall of the screen frame, and rotating assemblies are symmetrically connected to the two ends of the screen frame. A transmission hole is formed in the box wall of one side of the material collecting box located below the screen frame, a reset assembly is connected into the transmission hole, the other end of the reset assembly is connected with a sealing disc, the sealing disc is connected to the hole wall of the transmission hole in a sealed and sliding mode, and the end, away from the reset assembly, of the sealing disc is connected with an L-shaped supporting strip. The end, away from the sealing disc, of the suppor