Steam direct burial drain pipeline

The utility model discloses a directly-buried steam drain pipeline. The directly-buried steam drain pipeline comprises a steam pipe and a drain pipe. A heat preservation layer is arranged on the outer side of the steam pipe, a heat preservation pipe sleeve is arranged on the outer side of the heat preservation layer, and a plurality of noise reduction layers are arranged on the outer side of the heat preservation pipe sleeve. The drain pipe is arranged on the lower side of the steam pipe, one end of the drain pipe is communicated with the steam pipe, the other end of the drain pipe is closed, and a drain pipe is arranged on the side wall of the drain pipe and used for draining condensed water in the drain pipe. The steam pipe is used for conveying high-temperature steam, when the high-temperature steam is cooled, the high-temperature steam can be liquefied into liquid water, the drain pipe located on the lower side of the steam pipe can collect the liquid water of the part, and then the liquid water is discha