Low-friction centralizer for horizontal directional drilling

The utility model belongs to the technical field of drilling equipment, and particularly relates to a low-friction centralizer for horizontal directional drilling, which comprises a drill bit and a centralizing device, and the side wall of the drill bit is fixedly connected with a drill rod; a centralizing device is arranged on the surface of the drill rod and comprises four lantern rings and six ejector rods, the four lantern rings are arranged on the surface of the drill rod in a sleeving mode, the six ejector rods are located on the surface of the drill rod, two rotating rods are rotationally connected to the inner walls of the ejector rods, supporting blocks are fixedly connected to the positions, close to the rotating rods, of the lantern rings, and anti-skid devices are arranged on the surfaces of the lantern rings and comprise anti-skid sleeves. The anti-skid sleeve is located on the surface of the lantern ring and sleeves the surface of the drill rod, and the surface of the lantern ring is fixedly con