Municipal drainage system of sponge city

The invention discloses a sponge city municipal drainage system, and belongs to the technical field of drainage systems, the sponge city municipal drainage system comprises drainage pipelines, an acceleration pipe is mounted between every two adjacent drainage pipelines, an acceleration cylinder is rotatably mounted in each acceleration pipe, a plurality of spiral blades are annularly arranged on the inner side of each acceleration cylinder, the spiral blades form a spiral shape, and the spiral blades are rotatably mounted in the acceleration cylinders. The accelerating tube is provided with a power assembly used for driving the accelerating cylinder to rotate. The drainage system has the characteristic of increasing the drainage speed in heavy rain or rainstorm, so that the effect of reducing urban inland inundation or road soaking in the rainy period is achieved, and the municipal city appearance and the flexibility of a sponge city are improved. 本申请公开了一种海绵城市市政排水系统，属于排水系统技术领域，其包括排水管道，相邻两所述排水管道之间安装有加速管，所述加速管