▎ 摘　　要

NOVELTY - The utility model model claims a sewage treatment device with multi-layer filtering, comprising a device main body, the device main body is transversely provided with an active carbon filter layer, and the joint of the top end of the active carbon filter layer and the device main body is provided with a first sealing ring, the connecting part between the bottom end of the active carbon filtering layer and the device main body is provided with a second sealing ring, and the active carbon filtering layer through the first sealing ring and the second sealing ring ensures the sealing of the connection between the active carbon filtering layer and the device main body, the bottom end of the inner part of the device main body is provided with a filter layer graphene and graphene filter layer and the active carbon filter layer are parallel to each other; Compared with the prior art, the beneficial effects of the utility model are as follows: through graphene filter layer and the active carbon filter layer to the sewage in the main body of the multi-layer filter, solves the problem of bad filtering effect of the sewage treatment device in the existing technology.