The utility model relates to a vacuum radiant tube system, it includes that the vacuum width of cloth that the net was arranged penetrates the pipe its characterized in that, and the vacuum width of cloth is penetrated and tub is adopted a PVC pipe or a nylon tube, penetrates design radiation the hole 6m-8m of nose portion below apart from the vacuum width of cloth, and the pipe wall setting of vacuum radiant tube body is followed in the radiation hole, and until vacuum radiant tube socle, a tub socle shutoff is penetrated to the vacuum width of cloth, 1-2 layer in tub 60 meshes of body outsourcing-80 mesh nylon filter screens are penetrated to the vacuum width of cloth, and the drilling that the pipe inserted the reservation soil layer that 6m-8m is thick is penetrated to the vacuum width of cloth, and the several vacuum width of cloth is penetrated the nose end and is responsible for through branch connection, several branch connection, is responsible for and connects the power supply. The utility model is used for it is simple that collapsible loess construction has a construction steps, and construction cycle is short, and is with low costs, can thoroughly solve the problem that high saturated weak loess worker back convalescence is long, the settling amount is big, the bearing capacity is low.