Canned motor pump for conveying medium containing impurity particles

The invention relates to a canned motor pump for conveying a medium containing impurity particles. A front bearing pedestal is installed on the left side wall of a canned motor pump body in a sleevingmode, and a rear bearing pedestal is installed on the right side wall of the canned motor pump body in a sleeving mode; a front bearing and a rear bearing are respectively mounted in the front bearing pedestal and the rear bearing pedestal in a sleeved manner; a filtering part is fixedly mounted in the rear bearing pedestal; a rotating shaft is horizontally mounted in the front bearing and the rear bearing in a penetrating manner; a pressurizing impeller is fixedly mounted at the left end of the rotating shaft; the middle of the rotating shaft is fixedly sleeved with a rotor; a stator is fixedly mounted on the side wall of the middle in the canned motor pump body in a sleeved manner; the outer side wall of the front bearing pedestal is fixedly sleeved with a butt-joint disc; a liquid inlet pipe is fixedly mounted