Horizontal directional drill for large-pipe-diameter long-distance construction of water-rich sandy silt layer

The invention relates to a horizontal directional drill for large-pipe-diameter long-distance construction of a water-rich sandy silt layer, and relates to the field of drilling equipment. A rack is hinged to the base, a connecting rod is hinged to the base, a sliding base is hinged to the connecting rod, the sliding base is arranged on the rack in a sliding mode, a turnover frame is rotationally connected to the rack, an adjusting base is arranged on the rack in a sliding mode, a rotating shaft is rotationally connected to the adjusting base, and the rotating shaft controls the sliding base to slide on the rack through a first adjusting assembly. The rotating shaft controls the overturning frame to overturn on the rack through a second adjusting assembly, a moving table is arranged on the overturning frame in a sliding mode, a drilling machine is arranged on the moving table, and the output end of the drilling machine is connected with a drilling rod. An operator can conveniently adjust the angles of the dri