Efficient sedimentation tank having flushing apparatus

Disclosed in embodiments of the present invention is an efficient sedimentation tank having a flushing apparatus, comprising a tank body, a supply apparatus, a conversion body, a guide body, a main shaft, a central pipe, and a flushing pipe assembly, wherein a fixed disc having a quick-opening bolt is provided at the top of the tank body; an annular rail is provided on the side wall of the tank body; a movable end of the flushing pipe assembly is located in the annular rail; the guide body is fixedly connected to the upper part of the flushing pipe assembly; the conversion body is assembled on the guide body and can move up and down along the guide body; and the conversion body can be communicated with a connecting end of the flushing pipe assembly and an outlet pipe. According to the efficient sedimentation tank having the flushing apparatus of embodiments, the flushing apparatus works when needing to work and does not rotate along with the main shaft when not needing to work, thereby prolonging the service life of a device.