Drainage device with filtering assembly

The utility model discloses a drainage device with a filter assembly, which relates to the field of drainage devices and comprises a drainage tank, one side of the drainage tank is fixedly connected with a flange, one end of the flange is fixedly connected with a connecting pipe, one side of the connecting pipe is provided with a filter ash scraping assembly, and the filter assembly comprises a filter tank. The filter box is fixedly connected to one side of the connecting pipe, four fixing seats are fixedly connected to the interior of the filter box, filter screens are fixedly connected to the interiors of the fixing seats, and two threaded rods are rotationally connected to the two sides of the interior of the filter box. According to the dust removal device, the filtering and dust scraping assembly is arranged, the design of the filtering and dust scraping assembly is utilized, the scraper and the threaded rod are matched with each other, and under the action of the motor, the threaded rod is stressed to r