Underground deeply-buried metal pipeline non-excavation cutting device adopting directional drilling technology

The utility model relates to the technical field of underground deeply-buried metal pipeline cutting, in particular to an underground deeply-buried metal pipeline trenchless cutting device adopting a directional drilling technology, which comprises a drilling machine, a directional drill is mounted at the front end of a drilling rod of the drilling machine, and the directional drill comprises a front support component and a rear support component. A cutter assembly with a telescopic cutter head is arranged on the rear side of the front supporting assembly, and a rear supporting assembly is arranged on the rear side of the cutter assembly. The device is helpful for thoroughly solving the difficult problem of removing deeply-buried underground obstacles of small-diameter and long-distance pipelines in a trenchless manner. 本实用新型涉及地下深埋金属管线切割技术领域，具体涉及一种采用定向钻技术的地下深埋金属管线非开挖切割装置，包括钻机，所述钻机的钻杆前端安装有定向钻，所述定向钻包括前支撑组件，所述前支撑组件的后侧设置有刀头能够伸缩的刀具组件，所述刀具组件的后侧设置有后支撑组件。该装置有助于彻底解决小直径、长距离管线非开挖清除深埋地下障碍物难题。