Fabricated building grouting sleeve and grouting system

The invention relates to the field of buildings, and discloses an assembly type building grouting sleeve and a grouting system.The grouting sleeve comprises a vertical sleeve and further comprises a fixing plate horizontally arranged in the middle of the vertical sleeve, a plurality of vertical circulation holes are formed in the fixing plate, and a transmission assembly is inserted in the middle of the fixing plate; the locking assembly is arranged in the wall of the vertical sleeve, when the connecting steel bar is inserted into the vertical sleeve, the connecting steel bar drives the transmission assembly to move downwards, and the connecting steel bar is locked through the locking assembly; the grouting pipe is located on the inner side wall of the lower end of the vertical sleeve; the slurry overflow pipe is located on the inner side wall of the upper end of the vertical sleeve; and a sealing plug is in threaded connection with the interior of the slurry overflow pipe. And the connecting reinforcing stee