Large efficient type air-cooled cooling device for manufacturing industry

The invention discloses a large efficient type air-cooled cooling device for the manufacturing industry. The device comprises a columnar hollow shell, a main center hole communicating the upper surface and the lower surface of the hollow shell is formed in the center of the columnar hollow shell, a main connecting plate structure is arranged at the bottom of the side face of the columnar hollow shell, the main connecting plate structure and the columnar hollow shell are integrally arranged, supporting legs are fixedly arranged on the bottom surface of the main connecting plate structure through a main connecting plate, supporting base plates are arranged at the bottoms of the supporting legs, a fan-shaped air inlet shell is arranged at the bottom of the columnar hollow shell, an annular connecting block is fixedly arranged in the main center hole of the columnar hollow shell, and multiple connecting rods are arranged on the inner wall of the annular connecting block. Aerodynamics is used, high-temperature liq