Green building sewage treatment device

The utility model discloses a green building sewage treatment device, and belongs to the field of green buildings. The utility model discloses a green building sewage treatment device. Base and top plate, threaded adjusting knobs are mounted on the two sides of the base in a penetrating mode through mounting blocks. Supporting legs are fixedly mounted at the bottom of the threaded adjusting knob;walking wheels are fixedly installed at the bottom of the base. A water collecting tank body is installed at the top of the base, an activated carbon adsorption bag is arranged in the water collectingtank body, a purification chamber is installed on one side of the top of the water collecting tank body, a cobblestone purification layer, a melon seed stone purification layer and a coarse sand purification layer are sequentially laid in the purification chamber, and a top plate is installed at the top of the base through supporting rods. Through the walking wheels and the supporting legs, the device is more convenient t