Backwashing device for cooler of air compressor

The invention relates to a backwashing device for a cooler of an air compressor. The backwashing device is connected with the cooler and comprises an adapter, washing pipelines, a washing pump and a chemical tank, wherein the two ends of the washing pump are both connected with the two washing pipelines respectively, the washing pipelines are connected with the cooler through the adapter, and the chemical tank is connected with the washing pump. According to the backwashing device, chemicals in the chemical tank are delivered through the washing pump to be used for backwashing of the cooler. Compared with the prior art, the backwashing device for the cooler of the air compressor has the advantages that the workload of workers is educed, transportation cost is reduced, and washing time is shortened.