Adjustable dustproof device of open type circulating water cooling tower

The utility model belongs to an adjustable dustproof device of an open circulating water cooling tower. Comprising a circulating water cooling tower body, a water collector is arranged in the circulating water cooling tower body, a circulating water spraying pipeline and a filler layer are sequentially arranged on the lower portion of the water collector, a cooling water pool is arranged at the bottom of the circulating water cooling tower body, a water falling layer is arranged between the filler layer and the cooling water pool, a protection frame is arranged on the outer side of the water falling layer, and a dustproof unit is arranged on the outer side of the protection frame. The dustproof unit comprises a power part, and the power part is connected with a liftable filtering part; according to the circulating water cooling tower, the filtering part can be arranged on the outer side of the water falling layer to prevent impurities carried in external air from entering the circulating water cooling tower b