Complete equipment of PLC (Programmable Logic Controller) equipment for steel engineering

The utility model relates to the technical field of electrical equipment, in particular to steel engineering PLC equipment complete equipment, external air is filtered and dedusted through a heat dissipation mechanism and then is obliquely blown to a control module, dust on the surface of the control module is blown away for cleaning while heat dissipation is conducted on the control module, air in an inner cavity is exhausted out of the inner cavity through a one-way exhaust mechanism, and the air in the inner cavity is exhausted out of the control module. External dust is effectively prevented from entering the equipment from an exhaust position through the one-way exhaust mechanism; comprising a lower shell, an upper shell, a control module and a control panel, the upper shell is fixedly arranged at the top of the lower shell, the upper shell and the lower shell form an inner cavity, the control module is located in the inner cavity, and the control panel is fixedly arranged at the top of the upper shell;