Connecting device for buttress with limited installation space

The utility model provides a buttress connecting device for a limited installation space, and relates to the technical field of building construction. The device comprises a bottom plate, lug plates, a first connecting pipe, a second connecting pipe and a first bolt, long-strip-shaped holes are formed in the two ends of the bottom plate respectively, the lug plates are symmetrically connected to the bottom plate, the two lug plates are located between the two long-strip-shaped holes, the lug plates are connected with one end of the first connecting pipe, a first adjusting hole is formed in the side wall of the first connecting pipe, and a second adjusting hole is formed in the side wall of the second connecting pipe. The other end of the first connecting pipe is sleeved with a second connecting pipe, a second adjusting hole is formed in the side wall of the second connecting pipe, and a first bolt penetrates through the second adjusting hole and the first adjusting hole to fixedly install the second connectin