Abstract: In order to solve problem of rapid outburst elimination for concentrated return air roadway at heading face of Duanshi Mine. Based on the exploitation conditions of coal and rock roadwayｓ going forward one by one with closed distance, we use grade separation drainage technology with bedding holes and through beds holes to overall control outburst prevention area. To prevent blasting driving disturbance to damage holes in haulage roadway during gas extraction period, we use the outburst prevention and pretection technology of putting screen pipe down along the full length of bedding hole and using three-step and twice hole－sealing measure of “breaking hole, drilling hole, sectional hole sealing” in through beds hole to achieve efficient and long-time extraction of outburst prevention hole. After regional pre-drainage of 35 days to 40 days, the residual gas content of coal located in foreside and two sides of 15 m about concentrated return air roadway is all less than 8 m³/t, which satisfies the