Internal and external anti-corrosion pipeline for heat preservation and heat supply

The utility model relates to the technical field of pipeline fittings, in particular to an internal and external anti-corrosion pipeline for heat preservation and heat supply, which comprises a plurality of groups of splicing pipes and connecting sleeves for connecting the splicing pipes, and every two adjacent groups of connecting sleeves are connected through a plurality of groups of reinforced connecting rods; the two ends of the splicing pipe are in threaded connection with the connecting sleeve, the splicing pipe comprises an anti-corrosion shell and a buffering sealing layer, and a heat preservation layer is arranged between the anti-corrosion shell and the buffering sealing layer. According to the utility model, the splicing pipe is in threaded connection with the connecting sleeve, so that the pipeline is more convenient and quicker to mount and dismount. Meanwhile, due to the fact that the splicing pipe comprises the anti-corrosion shell and the buffering sealing layer, the pipeline has good anti-cor