为探索煤火温室气体在煤体内的渗流规律,分析了乌达煤田火区有害气体排放的影响因素,并设计了煤火温室气体的渗流实验方案进行实验,煤样取自乌达煤田火区现场。实验过程中调节应力和温度的变化,测定CO_2气体在煤样内的渗流特性。 In order to explore the law of coal-fired percolation of greenhouse gases in coal, the influencing factors of harmful gas emission in the fire area of ​​Wuda coalfield are analyzed. The experimental scheme of greenhouse gas seepage in coal-fired fire is designed and experimented. The coal samples are taken from the Wuda Coalfield Fire Area on site. During the experiment, the changes of stress and temperature were adjusted, and the seepage characteristics of CO_2 gas in coal sample were determined.