The invention discloses a two-time hot rolling head forming machine. The two-time hot rolling head forming machine comprises a die frame and a stamping mechanism. The die frame is provided with a first channel and a second channel, and the first channel and the second channel are parallel to each other and communicate in the vertical direction. A buffer channel is formed above the first channel, and the outer wall of the buffer channel is provided with a gas heating pipe. The right end of the first channel is provided with a first moving block which does reciprocating motion between the left end and the right end of the first channel, the right end of the second channel is provided with a second moving block which does reciprocating motion between the left end and the right end of the second channel, the face, facing towards the first channel, of the first moving block and the face, facing towards the second channel, of the second moving block are curved surfaces which are matched withthe outer walls of material rods, and the whole peripheral wall of each material rod can be right wrapped by the curved surface of the first moving block and the curved surface of the left end face of the first channel or by the curved surface of the second moving block and the curved surface of the left end face of the second channel. A stamping head is driven by a third air cylinder to move back and forth in the axis direction of the material rods. A cooling pipe is arranged at a discharging outlet and used for cooling formed material rods. According to the two-time hot rolling head formingmachine, bending of the material rods can be prevented, the material rods are heated before head rolling, the material rods are softened due to heating and thus are easier to form, the production efficiency is improved, the structure is simple, and operation is easy.