Grain screening and sundry filtering device simulating artificial shaking

The invention discloses a grain screening and sundry filtering device simulating artificial shaking. The device comprises a shell, an upper cover is arranged at the upper end of the shell in a riveting mode, sliding grooves are symmetrically embedded in the bottoms of the inner walls at the two sides of the shell, and a first base plate and a second base plate are movably arranged between the sliding grooves on the two sides; a vibration damping spring is arranged between the lower end of the first base plate and the upper end of the second base plate, a rotating bearing is arranged at the lower end of the second base plate, the lower end of the inner ring of the rotating bearing is connected with an adjusting bolt, the upper end of the first base plate is riveted with a material barrel, and a filter screen plate is arranged inside the material barrel; and a motor is arranged on the upper cover, the output end of the motor is sequentially provided with a rotating rod, a rotating pin and a lifting connecting r