NOVELTY - A gas is produced using wastes, sludge, excrements, food wastes, and wastewater so that fermentation performance of waste mixture layered inside a gas-generating induction tank and material explosion performance and material catalyst performance between the waste mixtures are promoted. The system consists of a leachate accumulator tank, a process tank, a jet for jetting leachate gathered at lower portion of the process tank installed at upper portion of the process tank, and a gas collecting unit provided at the upper portion of the process tank.    USE - System and method for producing gas using wastes, sludge, excrements, food wastes, and wastewater.    ADVANTAGE - The method is environmentally-friendly.    DETAILED DESCRIPTION - A gas is produced using wastes, sludge, excrements, food wastes, and wastewater so that fermentation performance of waste mixture layered inside a gas-generating induction tank and material explosion performance and material catalyst performance between the waste mixtures are promoted. The gas-production system consists of a leachate accumulator tank, a process tank, a jet for jetting leachate gathered at lower portion of the process tank installed at upper portion of the process tank, and a gas collecting unit provided at the upper portion of the process tank. All sorts of wastes, sludge, and waste materials existing on the earth are mixed at a respective rate of 20-35 wt.% and pulverized to 0.001 mm to 5 cm to obtain a waste mixture. 0.1-5 Wt.% limestone liquid or powder is prepared. A waste mixture is obtained by adding and diluting microorganism (in wt.%) (0.001-2) and soil (0.1-5) in food waste. Soil (1-5), magnesium (0.1-5), hydrogen peroxide (0.1-5), wastewater (0.1-5) generated from beverage, drink, or food factories or all sorts of industrial sites producing products, waste oil (0.1-5) generated from engines of vehicles or ship or from industrial devices, fluid waste (0.1-10) generated from sites like water purification plant or sewage disposal plant, fault coals (1-10) like debris generated from mines, and leachate (0.01-5) discharged and generated from metal or non-metal mines are mixed. The garbage mixture is layered in a gas generation conduction tub with a garbage mixture hanger capable of containing the material generating gas like the garbage mixture with the layer upon layer. A liquid collection globe is organized in the low-end of the gas generation conduction tub. A heating line is organized in the liquid collection globe configured in the low-end of the gas generation conduction tub. A sunlight electricity generating apparatus support stand is organized outside the gas generation conduction tub. A sunlight electricity generating apparatus is organized in the sunlight electric apparatus support stand. The production efficiency of gas of all kinds of the materials which continuously deliver is increased, increasing the temperature of liquid collection globe. An opening/closing device is organized in the end portion of the liquid collection globe and an underwater motor is set up in the liquid collection globe. The underwater motor and spurt pipe are bound. A liquid JET apparatus is connected and configured in the upper layer of the gas generation conduction tub. A thermo-generator is organized in the low-end of a delivering stack.