Gas emission structure for parallel-guide coal seam tunneling construction

The utility model discloses a gas emission structure for parallel-guide coal seam tunneling construction. The gas emission structure comprises multiple gas emission holes which are all drilled forwards from a gas emission drilling cross section in a tunnel under construction to a coal seam which the tunnel needs to pass through. The diameters phi of the gas emission holes all range from 80 mm to 100 mm. The gas emission drilling cross section is a tunnel excavation face, and the vertical distance between the tunnel excavation face and the coal seam which the tunnel needs to pass through is not less than 5 m. The gas emission holes are arranged in multiple rows and multiple columns. The space between openings of every two rows of up-down adjacent gas emission holes and the space between openings of every two columns of left-right adjacent gas emission holes are both D1, wherein D1 is not larger than 40 cm. The front end of each gas emission hole is a gas inlet. The space between the gas inlets of every two rows of up-down adjacent gas emission holes and the space between the gas inlets of every two columns of left-right adjacent gas emission holes are both D2, wherein D2 is not larger than 2 m. The gas emission structure is simple in structure, reasonable in design, convenient to construct, good in use effect and capable of being used for predicting gas quickly and effectively.