To provide an evaporative cooler that is capable of obtaining cold energy required in a second cooling flow path from a first cooling flow path and of being reduced in size.

An evaporative cooler 1 comprises: a first cooling flow path 10 with a circular shape in cross-sectional view for circulating a gas(air) and cooling the gas(air) by using evaporation heat of a cooling medium(water); a second cooling flow path 20 for cooling by using cold energy generated by the evaporation heat in the first cooling flow path 10; and airflow swirling means(airflow generation part 30) for swirling the gas(a first circulating air) that is circulated in the first cooling flow path 10.