Snow and environmentally friendly production of buried scraper conveyor is by means of a closed shell moving scraper chain leaving the bulk materials transport equipment delivered by the intended target. It has a small, sealing strong, rigid, flexible process layout, easy installation and maintenance, and can do more to feed and multi-point discharge and so on. Thus significantly improving the working conditions of workers and prevent environmental pollution. Buried scraper conveyor principle is dependent on the friction and pressure on the material side has, in the course of transportation of materials, pressure and direction of movement of the scraper chain continues to feed the lower part of the material when the material goes to the upper part of the force, these effects the resultant force is sufficient to overcome the frictional resistance and the outer material at the slot machine material is conveyed between the housing and produced by its own weight. So that the material in terms of the level of transmission, tilt and vertical transportation when transporting material can be formed before the continuous flow of movement.