通过对任楼煤矿Ⅱ1采区一采空区遗煤自燃案例的原因分析,阐述了跨上山回采对采空区自然发火的影响,得出结论:跨上山回采工作面不宜留设煤柱,如果必须留设煤柱应对煤柱进行预防自然发火特殊处理。工作面收作之后,应先构筑进风侧封闭墙,再构筑回风侧封闭墙,防止改变采空区内的风流走向。 By analyzing the cause of spontaneous combustion of coal in a gob of Ⅱ1 mining area in Renlou Coal Mine, the paper discusses the influence of cross-over-hill mining on spontaneous combustion of goaf, and concludes that coal pillar should not be left in the working face across the mountain, Coal pillar must be set aside to deal with coal pillar to prevent natural fire special treatment. After receiving the work surface, should be built into the wind side of the closed wall, and then build a return air side of the closed wall to prevent changes in the gob the trend of the wind.