Telescopic crowbar used for dismantling constructional engineering formwork

In order to solve the problem that an existing crowbar is inconvenient to use in the process of dismantling a constructional engineering formwork, the utility model provides a telescopic crowbar used for dismantling the constructional engineering formwork. The telescopic crowbar comprises a crowbar head piece, a handle, a first extension rod and a second extension rod, wherein one end of the first extension rod is connected with the crowbar head piece, the other end of the first extension rod is movably arranged on the inner side of the second extension rod, the second extension rod is movably arranged on the inner side of the handle, and the position between the handle and the second extension rod and the position between the second extension rod and the first extension rod are adjusted and fixed through limiting bolts. The telescopic crowbar has the advantages of being simple in structure, convenient and fast to manufacture, low in cost, and convenient to use and carry, and can be circulated and used in dif