The utility model provides a domatic greenhouse gases collection system, include the base, push up the case and get the gas device. The trapezoidal column body structure that is top and bottom unclosed is constructed by the rectangle side of the high difference of two relative settings and the same trapezoidal side of two relative settings to the base, and the bottom structure of base is the inclined plane structure to the base is equipped with the bleeder vent of evenly arranging all around. The top case is arranged on the base to the top case forms with the base intercommunication and holdsthe chamber. Get gas plant layout in a roof portion. Can be suitable for the hillside fields and get the needs of gas, easily insert bank slope soil, make this gaseous collection system can fix smoothly on the bank slope, enlarge the area of contact that the base inserted buried part and bank slope soil, fully guarantee inside and outside moisture of base and thermal exchange.