Anti-blocking self-priming pump

The utility model discloses an anti-blocking self-priming pump, which belongs to the field of self-priming pumps and comprises a self-priming pump, an anti-blocking mechanism comprises an inserting rod and a first rotating blade mounted on the outer surface of the front side of the inserting rod, and the anti-blocking self-priming pump solves the problems that water flows in a connecting cylinder, a spiral blade drives a rotating shaft to rotate, and a scraper rotates to scrape impurities on a filter plate. The problems that when a motor is started to operate, an impeller rotates, and at the moment, a middle connecting column rotates along with the impeller to drive an anti-blocking mechanism to rotate are solved. And an inserting rod drives a first rotating blade and a second rotating blade to rotate, impurities in water are cut up through the first rotating blade and the second rotating blade, and the situation that the impurities are accumulated in the shell, and water flowing is affected is avoided. 本实用新型