Sewage treatment PLC (Programmable Logic Controller) control cabinet capable of penetrating through bridge frame

The utility model discloses a sewage treatment PLC (Programmable Logic Controller) control cabinet capable of penetrating through a bridge frame, which relates to the technical field of control cabinets and comprises a main body, a partition plate, a penetrating pipe, a flange, a conveying pipe, a fan, an output pipe, a placement box, a drying agent, a humidity detector, a baffle plate, an exhaust port, a filter plate and a slag discharge groove. By arranging the conveying pipe, the output pipe, the placement box and the penetrating pipe, the effects of preventing the bridge frame from interfering installation of the control cabinet and dehumidifying are achieved, the distribution arrangement of the whole equipment is prevented from being interfered, the probability of short circuit of electrical equipment in the cabinet is reduced, fire disasters and safety accidents are prevented, the comprehensive use effect is good, and the practicability is high. And by arranging a reversing plate, a baffle plate, a moto