本文对综合机械化采煤工作面的三种沼气源的涌出进行了分析。作者指出,采空区和煤壁上的沼气涌出可以近似地作为常量,采落煤炭的沼气涌出则是时间的函数。为采空区和采落煤炭的沼气涌出量推导出新的计算公式,并在此基础上提出了综采面沼气涌出量和最小供风量的计算式。 This paper analyzes the emission of three kinds of biogas sources integrated mechanized coal mining face. The authors point out that gushing out of the mined-out area and the wall of coal can be approximated as a constant, and gushing out of coal is a function of time. A new calculation formula was deduced for the amount of methane emission from goaf and coal mining. On the basis of this, a formula to calculate the amount of gas discharged from the fully mechanized coal face and the minimum air supply volume was proposed.