Adjustable mortar anchor rod grouting device

The utility model relates to an adjustable mortar anchor rod grouting device, and belongs to the technical field of underground cavern construction. The grouting device comprises a bottom plate and a grouting device fixed above the bottom plate, wherein the grouting device can horizontally slide along the bottom plate; the grouting device comprises a horizontally-arranged guide mechanism, the guide mechanism comprises a horizontal hydraulic rod and a hydraulic cylinder body arranged on the horizontal hydraulic rod in a sleeving mode, the hydraulic cylinder body is connected with a hydraulic motor and connected with a bottom plate through a vertical supporting column, pulleys are arranged at the bottom of the supporting column, a sliding rail is arranged on the bottom plate, and the sliding rail is connected with the hydraulic motor. The pulleys are clamped in the sliding rails and can move along the sliding rails; and a clamping mechanism for fixing the grouting pipe is arranged on the hydraulic cylinder body