Large concealed culvert sewage discharge port tail end closure system used under urban road

The utility model provides a large concealed culvert sewage discharge port tail end closure system used under an urban road. The large concealed culvert sewage discharge port tail end closure system mainly comprises a sewage discharge port energy dissipation baffle, a sewage discharge port enclosing wall in a large concealed culvert, a sewage receiving pipeline, a sewage lifting pump station, a sewage lifting pipeline, an energy dissipation well and a sewage conveying pipeline. Aiming at the condition that an urban municipal pipe network does not have the function of building rain and sewage diversion, the problem is solved by adopting a tail end closure mode, the black and odorous water body of a river channel finally caused by the fact that urban sewage converges to a large rainwater concealed culvert is avoided, and the defects in the prior art can be overcome in the earlier stage or the transition stage of rain and sewage diversion building of a city. 本实用新型提供了一种用于城市道路下大暗涵污水排放口末端截流系统，主要包括污水排放口消能挡板、大暗涵中的污水排