Cooling trough

The invention relates to a cooling trough, which comprises a trough body, a water inlet at the bottom of the trough body, a buffer plate above the water inlet, and a batten wheel at the top of the trough body. The cooling trough is characterized by also comprising a plurality of vertical baffle plates at the bottom of the trough body, an oblique baffle plate arranged above the corresponding trough body of the water inlet, and a sewage collection and drainage port on the lateral surface of the upper part of the trough body. The opening of the buffer plate is changed into a top plate opening, the cooling trough is provided with the oblique baffle plate and the plurality of parallel vertical baffle plates at the bottom, and the sewage collection and drainage port is formed on the lateral surface of the upper part of the trough body, so the water flow direction in the trough body is changed, the water at the upper part and the bottom of the trough body is uniformly mixed, and consistency of water temperature is k