Circulating water cooling tower

The utility model discloses a circulating water cooling tower which comprises a cooling tower body and a ventilation opening formed in the lower portion of the cooling tower body, a plurality of adjusting blades are supported in the ventilation opening in a rotating mode, an anti-icing steam blowing device is arranged outside the adjusting blades, and the steam blowing device comprises blowing pipes arranged on the backs of the adjusting blades. One side of each purging pipe is connected with a steam branch pipe through a connecting hose, an air inlet of the steam branch pipe is connected with an air supply pipe, and an automatic adjusting device is arranged on one side of a ventilation opening. The anti-icing steam blowing device is arranged on the adjusting blade, so that the safety problem caused by hurting people due to accidental falling when ice is manually cleaned is fundamentally solved, and the risk caused by cleaning of workers is reduced. And unnecessary economic cost caused by brush hair replaceme