NOVELTY - A methane complete technology device for cold area comprises glass steel shell (1) with shell body heat adsorption insulating layer (2); lower semisphere insulating layer (3) buried in ground; solar thermal collecting medium heat-conducting pipe (18) provided on one end of water pressure tank (20); methane oven heating furnace heat-conducting pipe (21) provided on other end of water pressure tank; and expanded gel utilized at outside of insulating coating to construct expanding chamber body.    USE - The device is useful for cold area (claimed). It is used to produce methane for use in village, city, and town.    ADVANTAGE - The device is able to normally produce methane at - 20 degrees C; is able to adapt in different ways to increase temperature according to changes of outdoor temperature to satisfy the need of life activity in housing; and has complete function and unified standard.    DETAILED DESCRIPTION - A methane complete technology device for cold area comprises:    (1) glass steel shell with shell body heat adsorption insulating layer, which is constructed of four-layer material;    (2) sticking expanded plastic at outside of glass steel shell;    (3) insulating coating at outside of expanded plastic, where expanded gel is utilized at outside of insulating coating to construct expanding chamber body;    (4) heat absorption plastic film stuck at the outside of expanding chamber body;    (5) lower semisphere insulating layer buried in ground;    (6) earth groove provided with matting plastic film, and filled with filling(s), such as dairy manure, horse manure, sawdust, leaves, and crop straw;    (7) ground endothermic plastic film covered on upper side of filling object parallel to ground;    (8) solar thermal collecting medium heat-conducting pipe provided on one end of water pressure tank;    (9) methane oven heating furnace heat-conducting pipe provided on other end of water pressure tank, where two heat-conducting pipes enter the water pressure tank to connect with water pressure tank radiating pipe (22), which connects with sweating room radiating collar (6);    (10) methane oven heating furnace provided in heat absorption machine;    (11) tee connection (14) on gas conducting pipe (12);    (12) pressure automatically control valve (13) on one end of tee connection and condensing water bottle (15) on another end of the tee connection, where top of condensing water bottle is connected with methane transporting pipe (16);    (13) pressure gauge (17) provided on one end of center louver;    (14) temperature sensor (26);    (15) water pressure tank heat absorption protecting layer packaged at external of water pressure tank; and    (16) medium heat conducting pipe for outputting absorbed methane burning heat quantity.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic view of methane complete technology device.    Glass steel shell (1)    Shell body heat adsorption insulating layer (2)    Lower semisphere insulating layer (3)    Sweating room radiating collar (6)    Gas conducting pipe (12)    Pressure automatically control valve (13)    Tee connection (14)    Condensing water bottle (15)    Methane transporting pipe (16)    Pressure gauge (17)    Solar thermal collecting medium heat-conducting pipe (18)    Water pressure tank (20)    Methane oven heating furnace heat-conducting pipe (21)    Water pressure tank radiating pipe (22)    Temperature sensor (26)