High-position horizontal directional drilling roof drainage construction method

The invention discloses a high-position horizontal directional drilling roof drainage and drainage construction method, and belongs to the technical field of drilling construction.The high-position horizontal directional drilling roof drainage and drainage construction method specifically comprises the following steps that S1, a platform is erected for drilling, specifically, a drilling platform is erected at the position to be drilled, and then a drilling machine is used for drilling downwards through an opening of the drilling platform; a soil layer is monitored in real time through a camera on a drilling machine in the drilling process, and drilling is stopped when a drilled hole reaches a roof aquifer; s2, installation preparation is conducted, specifically, a small amount of grout is injected into the upper portion of a roof aquifer, the top is flattened, a flat structure can be formed after the grout is cooled, and then an installation plate is erected above the roof aquifer for fixing; and S3, water dr