FIELD: underground fire fighting. SUBSTANCE: device has a reservoir for liquid gas, steam generating facility, pipelines and sprayers to feed liquid gas and steam, and heat exchanging chamber. Lateral surface of heat exchanging chamber comprises two insulated semi- cylinders of opposite charges. Sprayers to feed liquid gas, for example, nitrogen and steam directed at an angle to each other are also insulated and connected to power supplies of opposite charges, with a sprayer and that half of chamber lateral surface it is directed to, has the same electric charge. EFFECT: fire fighting of high efficiency. 2 dwg
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