Frequency converter cooling device for direct blowing type air cooling unit

The utility model discloses a frequency converter cooling device for a direct blowing type air cooling unit, which comprises a wall body, a main body fixedly mounted in the wall body, a second connecting pipe fixedly mounted on the outer side of the wall body, a second mounting box fixedly mounted on the outer side of the wall body, and a fan fixedly mounted at the bottom of the second mounting box. The air purification device has the advantages that air can be filtered by the aid of the second filter screen, the first mounting plate is of an inclined surface structure, water flowing stability can be improved, the air purification device is convenient to use, the air purification device is simple in structure and convenient to operate, and the service life of the air purification device is prolonged. And the water level sensor is arranged, so that the water quantity in the third mounting box can be better controlled, impurities in air can be intercepted through the first filter screen, the air in the wall can