Device for preventing roller of rotary filter screen from being abraded and jammed

The utility model discloses a device for preventing a roller of a rotary filter screen from being abraded and jammed, which comprises a water treatment groove and a lug arranged on the inner wall of the water treatment groove, an adjustable driving device is arranged on the ground, and the adjustable driving device comprises a top plate, a base plate positioned at the lower part of the top plate and a horizontal calibration part arranged on the upper surface of the base plate, the shaft rod is arranged at the execution end of the horizontal calibration component, and chain wheels are symmetrically arranged at the two ends of the shaft rod; an air injection guide rail device is arranged at the bottom of the protruding block and comprises a rail and an air injection component embedded in the rail. A rotary filtering device is arranged between the chain wheel and the track and comprises a plurality of V-shaped screens, base rods hinged to every two adjacent V-shaped screens, inner sleeves symmetrically arranged