Boat domestic sewage treatment equipment

The utility model relates to boat domestic sewage treatment equipment. The boat domestic sewage treatment equipment is sequentially connected with a pretreatment unit, a secondary treatment unit, an electrochemical reaction tank and a discharging tank along the water flow direction through a water inlet pipeline, wherein a water outlet of the discharging tank is connected with a draining pipeline; the pretreatment unit and the secondary treatment unit are connected through a pipeline mixer, and a chemical agent tank is connected to the lower part of the pipeline mixer; the electrochemical reaction tank and the discharging tank are connected through a dephosphorization filtering unit; the pretreatment unit comprises a preliminary sedimentation tank and a water storage tank which are integrated into a whole; the preliminary sedimentation tank and the water storage tank are communicated through a first automatic flowing hole; the secondary treatment unit comprises a sedimentation tank and a middle water storage tank which are integrated together; the sedimentation tank and the middle water storage tank are communicated through a second automatic flowing hole. The boat domestic sewage treatment equipment is light, compact, attractive and elegant; meanwhile, the operation cost is low, the maintenance operation is simple and convenient; no dangerous chemical agent is added in the use process, and microbes do not need to be cultured, so that stink is avoided, and manual sewage cleaning operation is omitted.