Small high square sieve

The utility model relates to a small square tall sieve which comprises a base plate, a square tall sieve body is fixed on the upper surface of the base plate, a first sieve mesh is arranged between the left side wall and the right side wall of an inner cavity of the square tall sieve body, and a second sieve mesh is arranged between the left side wall and the right side wall of the inner cavity of the square tall sieve body. A cleaning mechanism is arranged on the left side of the high square sieve body, a feeding hopper is fixed to the upper surface of the high square sieve body, and a blocking mechanism is arranged on the left side of the high square sieve body. According to the small-sized high square screen, the cleaning mechanism is arranged in the small-sized high square screen, through the arrangement of a first electric push rod, a cleaning push plate, a waste bin, a mounting plate, a second electric push rod, a movable plate, a movable rod and a baffle, cleaning of impurities on a first screen and a