Purification device for treating circulating water for fluorite dressing plant

A purification device for treating circulating water for a fluorite dressing plant relates to the technical field of fluorite dressing and is characterized in that a plurality of purification cylinders are arranged side by side, one end of an input pipe (3) extends into the first purification cylinder, one end of a delivery pipe (8) is connected to a trumpet-shaped water collecting tank (601) arranged on the first purification cylinder, and the other end of the delivery pipe (8) extends into the second purification cylinder; the plurality of purification cylinders are connected according to the mode, and a water drainage pipe (6) is arranged at the bottom of the last purification cylinder; according to the device, part of broken stone impurities in sewage are filtered through a filter cartridge and an annular conveying belt, and the filter cartridge and a push plate are driven to rotate through cooperative use of a connecting pipe, a tooth block, a gear, a belt and a motor; and therefore, broken stone impurit