Hydropower station tail water channel structure

The hydropower station tail water channel structure comprises a riverbed, a first outlet flat section, a protective wall body and a construction cofferdam, a tail water pipe set is laid in the riverbed, and hollow rotating discs are evenly and movably connected into the tail water pipe set. By installing the second outlet flat section, the filter screen plate and the like, the performance of the device is optimized, on one hand, the filter screen plate is installed on the second outlet flat section, water flowing into a plant can be filtered and purified, and a large amount of impurities are prevented from flowing into the plant; on the other hand, a user can utilize the sliding connection effect between a guide sliding block and a guide sliding groove, so that when tail water passes through the tail water pipe set, a hollow rotating disc can be driven to rotate in the tail water pipe set through water flow impact force, and then impurities in the tail water are cut and crushed through the effect of crushing