Anti-pollution fermentation box

The utility model discloses an anti-pollution fermenting box which comprises a fermenting box body, a box door is arranged on the outer surface of the front end of the fermenting box body, a control box is fixedly installed on the upper portion of the outer surface of the front end of the fermenting box body, an electromagnetic valve is arranged in the control box, and a filtering assembly and a sterilization assembly are fixedly installed on the outer surface of one side of the fermenting box body. The sterilization assembly comprises a sterilization box, a drainage valve, a supporting frame, an ultraviolet sterilization lamp, a water pump, a fixing frame, a water suction pipe and a drainage pipe, and the filtering assembly comprises a first transition pipe, a second transition pipe, a filtering box, a water outlet pipe, a water inlet pipe, a first mounting cylinder, a second mounting cylinder, a third mounting cylinder, a PP cotton filter element, a UDF activated carbon filter element and a CTO activated ca