Pipeline excavation supporting device

The utility model provides a pipeline excavation supporting device. Relates to the technical field of pipeline layout, the pipeline excavation supporting device comprises two vertical plates, two first movable grooves are formed in the sides, close to each other, of the two vertical plates, strip-shaped blocks are fixedly installed on the inner walls of the four first movable grooves, and transverse plates are slidably installed on the four strip-shaped blocks; the four transverse plates are slidably sleeved with two sleeving blocks, mounting frames are fixedly mounted on the sides, close to each other, of the two sleeving blocks, first threaded rods are mounted on the two mounting frames in a threaded mode, circular blocks are rotatably mounted at one ends of the two first threaded rods, and moving plates are fixedly mounted on one sides of the two circular blocks; and a plurality of clamping grooves I are formed in the four transverse plates. The pipeline excavation supporting device has the advantages that