Blowout preventer for high-temperature high-pressure hot spring drilling of core drill

The utility model discloses a blowout preventer for high-temperature and high-pressure hot spring drilling of a core drill. The blowout preventer comprises a blowout preventer body and a drill rod, wherein the blowout preventer body is of a cylindrical structure capable of accommodating the length of a drill rod in a clearance mode, the drill rod is arranged in the blowout preventer body, and theblowout preventer body is composed of an upper flange blowout preventer, an upper monitoring and pressure relief manifold area, a pressure reduction buffer area, a lower flange blowout preventer and alower monitoring and pressure relief manifold area. According to the utility model, the structure is simple, the blowout preventer suitable for a core drill to drill a toxic and harmful liquid-containing layer under the conditions of high temperature and high pressure adopts a unique structural design; in actual use, the pipe diameter of the blowout preventer can be adjusted according to the drilling construction requirem