Coal mine gas pressure testing device

The utility model relates to the technical field of testing devices, in particular to a coal mine gas pressure testing device which comprises a control box, a box door is arranged on the front face of the control box, a protective door is arranged on the outer side of the box door, the box door can be protected through the protective door, and the sealing and waterproof effects are achieved. The waterproof and explosion-proof control device has the advantages that the waterproof and explosion-proof structure is arranged, so that the protection effect on the control device can be effectively improved, the waterproof and explosion-proof effects are improved, and the service life of the control device is prolonged. Water is prevented from entering the control device to affect the using effect or damage control elements in the control device, the sealing effect is improved, combustible gas in air is prevented from entering the control device, combustion or explosion caused by contact between electric sparks gener