The utility model relates to the technical field of pneumatic jumbolters, in particular to a pneumatic jumbolter for a
coal mine, and aims to solve the problems that the bottom of a drilling
machine lacks an auxiliary supporting mechanism, the drilling
machine is only placed on the ground and is easy to support unstably, slide and deviate during working, so that the whole device falls to the ground, and the drilling
machine is inconvenient to operate. Therefore, an operator is hurt, and the movement is inconvenient. Comprising a pneumatic jumbolter body, a
drill bit
assembly is arranged on the top area of the pneumatic jumbolter body, a control
handle is arranged on the top area of the pneumatic jumbolter body, and a supporting mechanism is arranged at the bottom end of the pneumatic jumbolter body; the supporting mechanism further comprises a supporting seat, a first bearing, a fixing column, a rotating table, a fixing plate and a first rotating shaft, a mounting groove is formed in the top end of the supporting seat, the first bearing is fixedly connected with the corresponding mounting groove, and the fixing column is fixedly sleeved with the corresponding first bearing.