The invention relates to a
shunting type drainage intercepting well. The
shunting type drainage intercepting well comprises a well cavity and a well cover; and the well cavity is internally divided into a water inlet chamber, a
sewage chamber, a primary rain chamber and an overflow chamber, the water inlet chamber is located at the upper part of the well cavity, the bottom wall of the water inletchamber is obliquely arranged, the
sewage chamber, the primary rain chamber and the overflow chamber are sequentially and adjacently arranged at the lower part of the well cavity, the
sewage chamber,the primary rain chamber and the overflow chamber all communicate with the water inlet chamber, a first linkage mechanism and a second linkage mechanism are arranged in the water inlet chamber, a water inlet
pipe is arranged on the side wall of the water inlet chamber, and the lower parts of the side walls of the sewage chamber, the primary rain chamber and the overflow chamber are respectively and correspondingly provided with a sewage water outlet
pipe, a primary rain water outlet
pipe and an overflow water outlet pipe. According to the
shunting type drainage intercepting well, sewage in sunny days and rainy sewage mixed sewage in rainy days are automatically classified and
cut off, so that the subsequent sewage and primary rainy treatment facilities can be subjected to targeted treatment, water of a downstream pipeline or a
water body is not prone to forming
backflow in the intercepting well, so that the treatment load of the subsequent treatment facilities is reduced, and the treatment efficiency is improved.