Compared with the traditional ordinary tunnel kiln, the new energy-saving and environment-friendly mobile rotary tunnel kiln are stacked at the bottom of the ring kiln at one time, and the relative movement required in the brick-making process is completed by the movement of the kiln body, so the kiln car and its supporting facilities are not required. The section of traditional tunnel kiln is generally 2.7-4.5m. The construction cost of tunnel kiln larger than this section is very high, while the section of circular rotary mobile tunnel kiln can reach more than 12M, and the construction cost is far lower than that of tunnel kiln.