本文根据下峪口煤矿炮采放顶煤工作面煤层注水的实践经验，提出了短孔煤层注水既是炮采放顶煤工作面粉尘防治的一项根本性措施，也是炮采放顶煤工作面预防煤与瓦斯突出的一条有效途径 Based on the practical experience of coal seam water injection at the top coal caving working face at Meiyukou in Yukou Mine, the paper puts forward that the short hole perfusion of coal seam is not only a fundamental measure to prevent and control the dust of coal caving face, but also the top coal caving face An Effective Way to Prevent Coal and Gas Outburst