Anti-deviation drilling rig

The utility model discloses an anti-deviation drilling rig, relates to the technical field of drilling rigs, and aims to solve the technical problems that in the prior art, a drilling rig cannot prevent a probe from deviating and is inconvenient to replace the probe, the drilling rig comprises a device supporting bottom plate; a drill bit stable lifting assembly is arranged at the upper end of the device supporting bottom plate, a drill bit anti-deviation guide assembly is arranged on the side of the drill bit stable lifting assembly, a stable anti-seismic drill bit assembly is arranged at the lower end of the drill bit anti-deviation guide assembly, and the drill bit stable lifting assembly comprises a supporting frame plate arranged at the upper end of the device supporting bottom plate. A driving motor is arranged at the upper end of the supporting frame plate, a rotating screw rod is arranged at the output end of the driving motor, and a limiting movable sleeve is arranged on the outer side of the rotatin