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分析井下自由循环风存在的危害性及受控循环风的可控安全与利用的合理性；统一了人们对两类循环风本质规律的认识，有利于推动受控循环通风技术在我国矿山的推广与应用．
Analysis of the harm of the free circulation wind underground and the controllable safety and utilization of the controlled circulation wind are reasonable; unify the understanding of the nature of the two types of circulation wind, and promote the promotion of the controlled circulation ventilation technology in our country’s mines With application.