Adjustable connecting structure for building curtain wall

The utility model discloses an adjustable connecting structure for a building curtain wall in the technical field of building curtain walls, which comprises a building wall body and a curtain wall plate, the front surface of the building wall body is fixedly provided with an assembling plate through embedded bolts and nuts, the front surface of the assembling plate is provided with connecting plates at equal intervals, and the front surface of each connecting plate is vertically provided with a T-shaped slot; first threaded blind holes are formed in the top of the assembly plate at equal intervals, two sets of T-shaped insertion plates are arranged on the back face of the curtain wall plate, one ends of the two sets of T-shaped insertion plates are inserted into the two sets of T-shaped insertion grooves correspondingly, semicircular bosses are fixedly welded to the back faces of the T-shaped insertion plates, and second threaded blind holes are formed in the tops of the semicircular bosses; according to the