Drilling rig for geological exploration

The invention relates to the technical field of geological survey, in particular to a drilling rig for geological survey, which comprises a driving assembly, an adjusting assembly, a support frame, a lifting assembly, a drilling assembly, a collecting assembly, a water spraying assembly and two stabilizing assemblies, the two stabilizing assemblies are respectively arranged on two sides of a retaining frame, and the water spraying assembly can spray water to the retaining frame through the adjusting assembly and the lifting assembly. The angle and the height of the drill bit are adjusted, so that the drill bit has a larger motion area, it is guaranteed that the drilling device surveys geological conditions more accurately, meanwhile, a drilling assembly on one side of a lifting assembly is matched, the drill bit can drill and sample the land conveniently, and a sleeve is arranged at the bottom of a blocking frame, so that geological samples drilled by the drill bit are smoothly conveyed into a blocking groove