Sand mud washing wet type arch breaking device for building

The utility model provides a building sand washing wet type arch breaking device which comprises a plurality of layers of shells and a base, the plurality of layers of shells are sequentially stacked and fixed, the lowest layer of shell is fixedly placed on the base, crushing cavities which are communicated with one another are arranged in the plurality of layers of shells, one or more groups of crushing shafts are arranged in the crushing cavities, and the crushing shafts are arranged on the base. Crushing teeth are arranged on the crushing shafts, the crushing shafts are in transmission connection with a first power device for driving the crushing shafts to rotate, and the rotating directions of the crushing shafts are opposite. According to the multi-stage crushing device, materials are crushed stage by stage, the particle size of the crushed materials subjected to multi-stage crushing can reach 0-2.5 mm, the crushing efficiency can be effectively improved, blockage is avoided when the materials pass throu