Steel formwork connecting piece for concrete pier

The utility model relates to the technical field of formwork connecting pieces, and discloses a steel formwork connecting piece for a concrete pier, which comprises a first side plate, a first steel formwork and a second side plate, a first square hole is arranged below the outer side wall of the first steel formwork, and a second square hole is arranged on one side, close to the first square hole, below the outer side wall of the first steel formwork. The first side plate is fixedly welded to the upper portion of the outer side wall of the first steel formwork. The designed connecting piece is fixed to the steel formworks, the two steel formworks can be fixed together through the connecting piece, one steel formwork is inserted between the first side plate and the second side plate on the other steel formwork, a second square hole is inserted into a supporting rod, a worker holds a disc to pull the disc forwards, the supporting rod slides forwards, a square vertical rod slides forwards, and a limiting block