The invention discloses a pipe type underground water drainage blind ditch. The structure is optimized and improved on the basis of an existing pipe type underground water drainage blind ditch in a landfill. A left gabion pillar and a right gabion pillar are symmetrically arranged on the two sides of a pipe culvert, a flexible unloading body is arranged between the left gabion pillar and the right gabion pillar and arranged over the pipe culvert, the top face of the flexible unloading body is flush with the top face of the left gabion pillar and the top face of the right gabion pillar, and a load transmission layer covers the top faces of the left gabion pillar, the right gabion pillar and the flexible unloading body. The blind ditch has the advantage that the pipe culvert cannot be broken under the action of the high filling load on the upper portion of the blind ditch, the blind ditch is suitable for being arranged under the landfill, especially a high landfill, and is used as an underground water drainage structure for the landfill, and it is ensured that the underground water stably drains out of the landfill.