The utility model relates to a height -adjustable removes assembled pipeline and promotes auxiliary device, including the pipeline connection portion that is used for supporting and/or adjusting pipeline vertical position, still include and to place the bottom sprag structure on the floor, the structural vertical position adjustment mechanism that is provided with of bottom sprag, vertical position adjustment mechanism can adjust pipeline connection portion for vertical position between the floor, compare in traditional, install the mode of calabash aloft because vertical position adjustment mechanism places on the floor through the bottom sprag structure, need not high altitude installation lifting device and can go up and down easy and simple to handle, safety to the pipeline, when needs remove, if remove as required the bottom sprag structure can, need not to relapse the high altitude construction dismouting, practice thrift the labour, can conveniently adjust construction position.