Vertical solid particle remover for anaerobic fermentation

The utility model relates to a vertical solid particle remover for anaerobic fermentation. Comprising an anaerobic fermentation box body and a biological reaction layer, the anaerobic fermentation box body comprises a movable top cover body, a cylindrical box body and a sewage collection layer, the inner wall surfaces of the movable top cover body, the cylindrical box body and the sewage collection layer are mutually wound to form a reaction cavity, the reaction cavity comprises a filler cavity body and a sewage cavity body, and a liquid drainage layer is arranged between the filler cavity body and the sewage cavity body; the biological reaction layer comprises a first biological nitrification brush, a biological nitrification ball and a second biological nitrification brush which are sequentially arranged from top to bottom, the biological nitrification ball is located above the liquid drainage layer, and a liquid drainage channel is further formed in the anaerobic fermentation box body and located above the