Prefabricated water conservancy pipeline for farmland water delivery irrigation

The prefabricated water conservancy pipeline comprises a main water pipe, a heating branch pipe and a protective sleeve, the heating branch pipe is attached to the outer wall of the main water pipe, the main water pipe is used for conveying irrigation water for irrigating the farmland, and the heating branch pipe is used for conveying hot water; the main water pipe and the heating branch pipe are arranged in the protective sleeve in a sleeved mode. The problem of freezing and blocking of the farmland irrigation conveying pipe can be effectively solved. 本申请公开了一种用于农田输水灌溉的预制式水利管道，包括有主水管、加热支管和保护套管，所述加热支管贴敷于所述主水管的外壁，所述主水管用于输送灌溉农地用的浇灌水，所述加热支管用于输送热水，所述保护套管将所述主水管和所述加热支管套设于其内部。本申请能有效解决农田灌溉输送管冻结堵塞现象。