Reciprocating type grid filtering device

The utility model provides a reciprocating type grid filtering device, which relates to the technical field of sewage treatment and comprises a grid and a cleaner, the grid comprises a plurality of strip-shaped grid holes; the cleaner comprises a reciprocating device and an anti-blocking comb; the reciprocating device can drive the anti-blocking comb to reciprocate; the anti-blocking comb comprises a fixing piece and a plurality of comb teeth; the comb teeth are strip-shaped; the strip-shaped extending direction of the comb teeth is perpendicular to the fixing piece, and the comb teeth are rotationally fixed to the fixing piece. The comb teeth penetrate through the strip-shaped grid holes; the reciprocating movement device can move the anti-blocking comb to reciprocate in the strip-shaped grid holes in the vertical direction; in the process that the comb teeth rotate relative to the fixing piece, the area of the cross section, perpendicular to the extending direction of the strip-shaped grid holes, of the com