Novel siphon type wall drainage pedestal pan

The utility model particularly relates to a novel siphon type wall drainage pedestal pan which comprises a seat body, a dirt cavity is arranged in the seat body, a water supply pipeline and a blow-off pipeline which are communicated with the dirt cavity are arranged on the seat body, a plurality of water outlets communicated with the water supply pipeline are arranged at the edge of the top of the dirt cavity, and the bottom of the dirt cavity is communicated with the blow-off pipeline. A water seal area is formed at the bottom of the sewage cavity, and a three-stage stepped water flow surface is arranged on the inner surface of the sewage cavity from top to bottom. The wall row type toilet bowl is reasonable in structure and convenient to clean, the water supply pipeline and the blow-off pipeline are compact in design structure, the occupied space of the toilet bowl seat body is reduced, the length of the siphon pipeline is set within a shorter product size, and the siphon function is achieved. The three-sec