Fire engineering pipeline construction device

The invention relates to the technical field of pipeline construction, and discloses a fire engineering pipeline construction device which comprises a support, a mounting plate connected to the support, two sets of positioning assemblies oppositely arranged on the mounting plate and a driving assembly used for driving the two sets of positioning assemblies to move face to face or back to back. The positioning assembly comprises a base arranged on the mounting plate in a sliding mode, a positioning ring rotationally connected to the upper side of the base and a movable part used for driving the positioning ring to rotate relative to the base, a positioning hole allowing a pipeline to penetrate is formed in the middle of the positioning ring, and a receding channel capable of being opened or closed is formed in one side of the positioning hole in a communicating mode; and the pipeline can move in or out of the positioning ring along the abdicating channel. According to the pipeline butt joint device, when the p