Evaporative cooling unit

The invention relates to the technical field of air conditioners, in particular to an evaporative cooling unit. The problem that the spraying effect of a spraying pipe in the evaporative cooling unit is poor is solved. In order to achieve the purpose, the evaporative cooling unit comprises a machine shell and a plurality of spraying pipes, the spraying pipes are arranged on the upper portion of the machine shell, the evaporative cooling unit further comprises a water collecting box connected to the machine shell, and a liquid inlet and a plurality of liquid outlets are formed in the water collecting box; the multiple liquid outlets are distributed in two first side walls, oppositely arranged, of the water collecting box, one end of each spraying pipe is connected to one liquid outlet in a sealed mode, and the other end of each spraying pipe extends in the direction away from the water collecting box. And by arranging the water collecting box, the spraying water quantity uniformity of the spraying pipe is impr