Rotary dissolving air flotation purifier

The invention discloses a rotary dissolving air flotation purifier, comprising a rectangular box body, a rotary dissolving device, a releaser, a slag scraping device and a slag extractor, wherein, therectangular box body is provided with a sewage water inlet and a clear water outlet, the rotary dissolving device is arranged in or out of the box body and can form supersaturated high-pressure air d issolving water, the releaser is arranged at the bottom of the box body at the sewage water inlet, and adopts no-clogging pressure loss structure, and the releaser is communicated with the water outlet of the rotary dissolving device; the slag scraping device is arranged on the upper part, which is close to the clear water outlet, of the box body and is used for scraping floating slag on water, and the slag extractor is arranged on the upper part of the box body and is arranged between the clear water outlet and the end of the slag scraping device. The invention has the characteristics of small space occupation, low energy consumption, being quiet, no clogging, high efficiency, easy operation, few faults, strong popularity and the like, and is widely used for removing pollutants of suspended substance, grease and the like in the industry of dye printing, hide manufacture, oil refining, paint processing, chemicals processing, dairy processing, vehicle spray finishing, paper making, mechanical workout, slaughter, food processing, beverage processing, dairy food processing, brewing, domestic sewage treatment, etc.