Mute drain pipe

A mute drain pipe comprises a water inlet pipeline, a water outlet pipeline and a water storage bin. A water diversion conical head with an outward conical tip is arranged at one end of the water outlet pipeline, and at least one overflow port is formed in the side wall of the water outlet pipeline. Each of the water inlet pipeline and the water outlet pipeline comprises a mute layer, a reinforcing layer and an outer wall layer which are sequentially arranged from inside to outside. The mute layer comprises a polypropylene inner layer, a filler layer and a polypropylene outer layer which are sequentially arranged from inside to outside. The mute drain pipe provided by the utility model is provided with the water diversion conical head, so that falling water flow directly impacts the water diversion conical head to be decelerated and shunted, and the water flow is prevented from directly impacting the inner wall of a pipeline. The water storage bin is arranged and connected with the water inlet pipeline and th