Drain pipe butt joint device for municipal engineering

According to the drainage pipe butt joint device for municipal engineering, the wide-opening end of a to-be-butt-jointed pipeline is inserted into a heating through hole, and an electric heating cylinder is powered on to heat and soften the wide-opening end of the to-be-butt-jointed pipeline. And the softened wide opening end of the to-be-butted pipeline penetrates out of the through hole. The two first clamping mechanisms work at the same time, each first driving air cylinder drives one first clamping block to get close to the pipeline to be in butt joint, and the two first clamping blocks clamp and fix the butt joint pipeline. And the narrow opening end of another to-be-butted pipeline is inserted into the softened wide opening end of the to-be-butted pipeline. After the two to-be-butted pipelines are fixed in a penetrating mode, the adhesive tape on the adhesive tape ring arranged on the bearing rod in a sleeving mode is pasted to the combination position of the two to-be-butted pipelines. The driving moto