Grouting machine for fabricated building

The utility model particularly relates to an assembly type building grouting machine which comprises a bottom plate, a material storage tank is fixedly installed on the upper end face of the bottom plate, a containing cavity is formed in the bottom plate, a discharging cavity communicated with the containing cavity is formed in the lower end face of the material storage tank, and a rotating rod is rotatably installed in the containing cavity. A material guiding cavity communicated with the discharging cavity is formed in the upper side of an inner cavity of the rotating rod, a pipe body is installed on the outer side of an inner cavity of the storage cavity in an inserted mode, a discharging hose with the two ends fixedly connected with the inner side of the pipe body and the rotating rod is arranged in the storage cavity, and the discharging hose is spirally wound around the periphery of the rotating rod; a through hole communicated with the discharging hose is formed in the outer end face of the material gu