Pipe bending device and pipe material pressing and bending device

The embodiment discloses a pipe bending device which comprises a support, a telescopic mechanism connected with the upper end of the support and pipe material support parts arranged at the lower end of the support, wherein the number of the pipe material support parts is at least two, and the telescopic mechanism is positioned between the adjacent two pipe material support parts. The embodiment of the invention further discloses a pipe material pressing and bending device which applies the pipe bending device. The embodiment can press and bend a pipe material by placing the pipe material to be pressed and bent on the pipe material support parts, and then carrying out up and down motion through the telescopic mechanism positioned between the pipe material support parts. The device has simple structure and can be detached and facilitate the downhole operation; furthermore, the operation is simple and fast and can not affect the continuity of production.