The invention relates to a convenient grouting sleeve device suitable for backwall grouting and a use method thereof. The grouting sleeve device can be divided into a front-loading grouting pipe set,a stop grouting expansion rubber sleeve and direct set, an intermediate connecting device and a grout inlet pipeline. The front-loading grouting pipe set includes an ordinary steel tube with an internal thread at one end and four small-bore grout sealing tubes welded at the periphery and provided with overhanging ports of 45-degree inclined angle on the outer wall; a four-way device of the grout inlet pipeline is a stainless steel four-way device with valves at each of end ports, and three end ports are a grout A end port, a grout B end port and a pressure relief end port; and a tube head cover is a round pipe plug device with an external thread at one end, and a grouting hole can be plugged after the tube head cover is screwed. Compared with existing devices, the convenient grouting sleeve device suitable for the backwall grouting successfully realizes the convenient handling of end sockets, the recycle of the device and the rapid restoration of the wall surface, greatly improves thework efficiency, reduces the cost expenditure, and can be widely used in backwall grouting construction.