Wall connecting piece easy to disassemble and assemble

The utility model discloses a wall connecting piece easy to disassemble and assemble, which comprises two pre-embedded sleeves, two connecting pieces, a connecting piece, a connecting piece and a connecting piece, wherein the two pre-embedded sleeves are arranged at an interval and pre-embedded in a wall; the two through-wall bolts are matched with the embedded sleeve, and each through-wall bolt is provided with a first nut; the fixing piece is fixedly connected with the two through-wall bolts; one end of the connecting rod is connected with the fixing piece, and the other end of the connecting rod is provided with first external threads; and the two second nuts are arranged on the connecting rod and are matched with the external threads. The problems that when an existing wall connecting piece is used, embedded steel bars are fixedly connected in a welding mode, after the embedded steel bars are used, the embedded steel bars need to be cut and subjected to other construction treatment, secondary use is affec