The invention discloses a pipe baking device used for pipeline construction. The pipe baking device comprises a pipe bending device and a limiting device; the pipe bending device comprises an assemblybase and a pipe bender; the pipe bender comprises a bottom supporting plate, side supporting plates and a rotation mechanism; a rotary shaft is connected between the side supporting plates; rotary discs are fixedly arranged on two sides of the rotary shaft; the rotary discs sleeve the rotary shaft; one side of the rotary shaft is connected to a rotary handle; the rotary handle is arranged on theouter side of the corresponding side supporting plate; a positioning plate is arranged between the two rotary discs; a node component is arranged on the positioning plate; the limiting device comprises an upper limiting component and a lower limiting component; and an upward pipe bender is arranged on the upper limiting component. By adopting the pipe baking device, bending degrees with two opposite directions and different angles can be manufactured at the same time according to needs; and the pipe bending effect of long pipelines and short pipelines can be realized by adjusting the positionof the limiting device; the integral structure is more firm and stable.