Grouting reinforcement structure for inner wall of roadway

The utility model discloses a grouting reinforcement structure for the inner wall of a roadway, belongs to the technical field of roadway support, and aims to solve the problems that when solidified grout is injected into the roadway, a supporting structure is lacked at the bottom, and the support strength is poor. A grouting reinforcement structure for the inner wall of a roadway comprises a grouting mechanism, the grouting mechanism comprises a roadway assembly, and a grouting assembly is movably arranged above the roadway assembly; the arch crown mechanism comprises a supporting assembly, a moving assembly is arranged at the bottom of the supporting assembly, a double-head motor arranged in a fixing cavity is started to drive a rotating rod to rotate, so that a driving roller and a transmission roller rotate at the same time, and a transmission crawler belt is arranged on the driving roller and the transmission roller in a sleeving mode, so that the transmission crawler belt starts to rotate; and the suppo