Domestic sewage treatment device for composite membrane method denitrification and dephosphorization ship

The invention relates to a domestic sewage treatment device for a composite membrane method denitrification and dephosphorization ship. An adjusting cabinet is connected with a domestic sewage pipe for the ship and is connected with a hydrolysis cabinet through a pipeline; the sludge cabinet is connected with a pressure seawater or fresh water pipe and is connected with the anoxic cabinet throughan supernatant overflow pipe; the hydrolysis cabinet is sequentially connected with an anoxic cabinet, an aerobic cabinet, a membrane cabinet and a clear water cabinet; the connecting pipeline betweenthe aerobic cabinet and the membrane cabinet is also connected with a medicine box, and the connecting pipeline between the membrane cabinet and the clear water cabinet is also connected with an ultraviolet sterilizer; the bottoms of the adjusting cabinet, the hydrolysis cabinet and the clear water cabinet are connected with overflow sewage pipes; a sludge return port at the bottom of the membrane cabinet is connected wit