Spray cooling device of air cooling island

Provided is a spray cooling device of an air cooling island. A water inlet of a multistage water pump is communicated with a desalting water tank, a water feeding manual sluice valve is arranged on a water feeding pipe of the multistage water pump, a washing water tank is connected with a spraying pump which is provided with a spraying pipe, the spraying pipe is communicated with a transverse stainless steel pipe after being communicated with the water feeding pipe, one or more than one stainless steel branch pipe is installed on the stainless steel pipe, an electric sluice valve is arranged on each stainless steel branch pipe respectively, and one or more than one spraying device is in series connection with each stainless steel branch pipe. The spray cooling device of the air cooling island has the advantages that the spray cooling device can enable unit vacuum to be kept above -45 KPa when the environment temperature is the highest in summer, can be operated with full load, reduces coal consumption by abov