NOVELTY - Food fresh-keeping and drying integrated device comprises: intermittent food fresh-keeping and drying chamber (18) with solar air heat collector (9), bottom with hot air channel (11), middle with fresh-keeping modules (6), upper part with discharging fans (12), hot water coil pipe (14) on four walls that is connected with heat sources; biological energy producing zone (1) connected to marsh gas storage tank; heat sources are connected with marsh gas storage tank that is connected with biogas filter tank (3); and marsh gas filter tank is connected with fresh air outlet module.    USE - As food fresh-keeping and drying integrated device (claimed).    ADVANTAGE - The intermittent food fresh-keeping and drying chamber of food fresh-keeping and drying device not only can realize keeping of new fruit and vegetable fresh, but is also capable of drying vegetables and fruits not sold out. The intermittent food fresh-keeping drying chamber comprises several food fresh-keeping modules that use marsh gas for fresh-keeping, and maintain temperature by using water. Intermittent food fresh-keeping drying chamber for drying uses solar energy and also marsh gas provides double-heat source of heat to dry food. The automatic power control system adjusts temperature and humidity automatically by sensor, to control and maintain temperature and humidity in chamber. The heat generated in process is fully used by comprehensive straw utilization process and in drying and fresh-keeping of food.    DETAILED DESCRIPTION - A food fresh-keeping and drying integrated device comprises: energy producing zone (1), reservoir bag of marsh gas tank body (2), biogas filter tank (3), air inlet fan (4), air outlet fan (5), fresh-keeping module (6), ground source heat pump (7), circulating pump (8), solar air heat collector (9), cool water (10), hot air channel (11), discharging fan (12), several heat sources, normal pressure heating machine (13), hot water coil pipe (14), feeding port (15), discharge hole (16), electric control cabinet (17), and intermittent food fresh-keeping drying chamber (18); where intermittent food fresh-keeping and drying chamber is provided with solar air heat collector, has bottom set with hot air channel, middle is provided with several fresh-keeping modules, upper part has discharging fan on two sides, hot water coil pipe is on four walls, where hot water coil pipe is connected with several heat sources from normal pressure heating machine; biological energy producing zone is connected with marsh gas storage tank; several heat sources from normal pressure heating machine are connected with marsh gas storage tank that is connected with biogas filter tank; marsh gas filter tank through inlet fan and fresh-keeping module is connected with fresh air outlet module that is connected with air outlet fan and biogas filter tank; solar energy air heat collector through cool water (10) is connected with hot air channel connected with fresh-keeping module and inner wall of fresh-keeping module is provided with ground source heat pump, inner part is provided with methane, carbon dioxide, oxygen concentration detector and temperature and humidity detector, and ground source heat pump through U-shaped pipe and circulating pump forms closed circulation, where U-shaped tube meter from ground is connected to underground heat source. The intermittent food fresh-keeping drying chamber is respectively provided with feed inlet and discharge hole. The biological energy production zone utilizes sewage, straw, tail vegetable type agriculture, and forestry waste for conversion into biogas, organic fertilizer and liquid fertilizer. The hot air channel is equipped with food frame.    DESCRIPTION OF DRAWING(S) - The figure shows food fresh-keeping and drying integrated device.    Energy producing zone (1)    Reservoir bag of marsh gas tank body (2)    Biogas filter tank (3)    Air inlet fan (4)    Air outlet fan (5)    Fresh-keeping module (6)    Ground source heat pump (7)    Circulating pump (8)    Solar air heat collector (9)    Cool water (10)    Hot air channel (11)    Discharging fan (12)    Normal pressure heating machine (13)    Hot water coil pipe (14)    Feeding port (15)    Discharge hole (16)    Electric control cabinet (17)    Intermittent food fresh-keeping drying chamber (18)