The utility model provides a big flood underground mine tunnel waterwall, belongs to mining technical field for administering the tunnel working face and gushing water, guarantee construction safety, its technical scheme is, including building near the twice manger plate enclosure the working face of tunnel, pre -buried aqueduct and the pre -buried pipe of a plurality of slip casting by laying bricks or stones during the waterwall constitutes, pre -buried aqueduct is located manger plate enclosure root and crosses twice manger plate enclosure, the pre -buried pipe of a plurality of slip castings cross twice manger plate enclosure and on the manger plate enclosure evenly distributed, all be equipped with the stop valve in the outer end of pre -buried aqueduct and the pre -buried pipe of slip casting, be equipped with between the twice manger plate enclosure and fill the concrete. The utility model discloses utilizing manger plate enclosure shutoff working face to gush water, adopting the working face method improvement tunnel yong shui of slip casting in advance again, not only can obtain the effect of harnessing the river of ideal, guarantee the safety of constructing, have construction convenience in addition, construction cost low grade characteristics can be widely used in big flood mine underground tunnelling.