Fermentation gas-liquid collecting and filtering equipment for sewage treatment tank

The utility model relates to the technical field of filtering equipment, in particular to fermentation gas-liquid collecting and filtering equipment for a sewage treatment tank, which comprises a treatment tank main body, a guide block and a filtering bin, a tank cover is arranged above the treatment tank main body, the guide block is fixedly connected inside the tank cover, a water falling block is fixedly connected below the guide block, and the water falling block is fixedly connected with the filtering bin. When sewage in the treatment tank main body reacts with fermentation liquor, generated gas and liquid stay on the surface of the guide block, the guide block is in the shape of an inverted cone, the gas and liquid staying on the surface flow towards the center of the guide block along the inclined surface of the guide block and finally drop into the collection bin from the surface of the water falling block, and the two water pumps are started; according to the gas-liquid treatment device, gas and liqu