Explosion-proof control box

The utility model discloses an explosion-proof control box, which relates to the explosion-proof technical field and comprises a control box body and a box door, the box door is hinged to the front side of the control box body and can be closed in a sealed mode, an air inlet and an air outlet are formed in the control box body, and a first air valve and a second air valve are respectively connected to the air inlet and the air outlet. The input end of the first air valve is connected with a dust filtering cylinder, and an air pump, a dust concentration sensor and a main controller are installed in the control box body. The first air valve, the second air valve, the dust filtering cylinder, the air pump, the dust concentration sensor and the master controller are arranged and matched for use, the dust concentration sensor detects the dust concentration in the control box body, after the dust concentration reaches a set safety value, the master controller controls the air valve to be opened, and the air pump ex