Device for preventing water drop and oxygenation at front end of autotrophic denitrification tank

The utility model discloses a device for preventing water drop oxygenation at the front end of autotrophic denitrification tank, which comprises a water drop tank and a water level warning mechanism, one side of the inner side wall of the water drop tank is fixedly connected with a slideway plate, the bottom end of the slideway plate is fixedly connected with a support plate, one side of the inner side wall of the water drop tank is fixedly connected with a mounting plate, and the mounting plate is fixedly connected with the water level warning mechanism. A sliding groove is formed in the inner side wall of the mounting plate, and the interior of the sliding groove is movably connected with a connecting block through a sliding block. The water falling pool is of a semi-closed structure, exchange between air in the pool and outside air is reduced to a certain extent, the front half section of the slideway plate is of a parabola shape, the water flow movement rule is met, the water flow direction is changed, wa