Ventilation device for low-voltage power cabinet

The utility model relates to the field of power cabinet ventilation devices, in particular to a ventilation device for a low-voltage power cabinet, and aims to solve the technical problems that an existing power cabinet ventilation structure is generally mounted in a manner that bolts are screwed on the side surface of the power cabinet to be externally hung, so that a protruding ventilation structure additionally occupies indoor space, and the utilization rate of the indoor space is reduced. According to the technical scheme, the ventilation device for the low-voltage power cabinet comprises cross-shaped supporting seats, a drying agent storage assembly, an activated carbon storage assembly, a disassembly structure, a dustproof net structure, a dustproof net disassembly and assembly structure and a ventilation fan, and square holes in a top plate and a bottom plate of the low-voltage power cabinet are each internally provided with one cross-shaped supporting seat; a drying agent storage assembly is arranged