Gas explosion suppression system for coal mines

The utility model discloses a gas explosion suppression system for coal mines. The system comprises a gas detection module for detecting methane concentration and oxygen concentration at upper corner of a coal face, and an intrinsic safety explosion-proof control valve electrically connected with the gas detection module, wherein the intrinsic safety explosion-proof control valve is electrically connected with an insert gas release device for releasing inert gas to the upper corner of the coal face to dilute the oxygen concentration and the methane concentration, and a first wind shielding device for preventing the oxygen of an intake airway from entering into the upper corner of the coal face. The gas explosion suppression system for coal mines is high in working reliability, realizes the aim of underground gas explosion suppression, improves the safety of coal mining operation, and is strong in practicability, excellent in use effect and convenient to spread.