Closed cooling tower

The utility model discloses a closed cooling tower, which belongs to the technical field of closed cooling towers and comprises a cooling tower main frame, a vapor chamber is arranged in the cooling tower main frame, a circulation component is sleeved on the surface of the vapor chamber, radiating blocks are arranged on the top and the side surface of the cooling tower main frame, and ash removal components are embedded in the radiating blocks. According to the utility model, through the arrangement of the dust cleaning assembly, after the bolt is screwed out, the side plate can be pulled through the pull ring to drive the sliding block to move, and the tail end of the sliding block can take out accumulated dust among the radiating fin ventilation slots in the moving process, so that the smoothness of the radiating fin ventilation slots is ensured, and the radiating effect is better; according to the cooling tower, the circulating assembly and the water pump are arranged to suck cooling liquid, the water pipe