Protective drilling machine for processing buried drainage polyethylene double-wall corrugated pipe fitting

The utility model discloses an underground drainage polyethylene double-wall corrugated pipe processing protective drilling machine, which comprises a base and a protective cover, two first sliding chutes are arranged on two sides of the base, two first sliding blocks are fixedly connected to the bottom surface of the inner side of the protective cover, the two first sliding blocks are connected with the two first sliding chutes in a sliding manner, and the two first sliding chutes are connected with the protective cover. A sliding rod is fixedly connected to one side of the top face of the base, a lantern ring is slidably connected to the sliding rod in a sleeving mode, a support is fixedly connected to one end of the lantern ring, a sliding block is slidably connected to the support in a sleeving mode, and a first motor is fixedly connected to the bottom face of the sliding block. The protective cover is arranged, the protective cover can be connected with the base through the sliding block and the insertin