Method for controlling hidden disasters in mined-out area

The invention relates to a method for controlling hidden disasters in a mined-out area, and belongs to the field of coal mine fire control. By adopting a method of spraying a CaCl2 aqueous solution and injecting inert gas in combination with a mode of injecting N2 and the atomized CaCl2 aqueous solution in a manner of embedding pipelines in the mined-out area, and through the selection of a casingoutlet area and the arrangement of inner and outer pipe outlets, the conditions in a coal mining area fails to meet the conditions of spontaneous combustion of residual coal and gas explosion finally. Compared with the prevention and control measures which independently consider the spontaneous combustion of the residual coal and the gas explosion in the prior art, the method can give consideration to the contradiction between the prevention and control measures of spontaneous combustion of residual coal and the gas explosion, the effect that one method simultaneously solves two hidden disasters in the mined-out area