TECHNOLOGY FOCUS - ENVIRONMENT - Preferred Methods: The oxygen-free thermal-cracking gasification comprises processing computation registration, sending garbage to garbage box, sorting, measuring, processing, supplying material, pollution discharge collecting, setting special air-exhaust, pollution discharge collecting and relative safety health management control system in the environment of garbage pile storage area, using special machine apparatus, and setting special machine apparatus or tool in garbage short barge and convey; packing processed garbage into series cracking furnace system in continuous way, heating, cracking and gasifying the garbage under sealing condition in sectional, and inducing spilled gas in tank by special apparatus to collect and to store; inducing out cracking gas and pre-processing dehydration and de-impurity, and sending to low pressure gas cabinet to store; guiding cracking gas as energy source of garbage process into each heating furnace for heating and cracking garbage; refining, externally selling, and intensively processing whole three-waste matter in productive processing process, making low carbon level combustible gas. The high temperature carbide discharging operation regulation comprises connecting combustible gas discharging port on residue carbon box with combustible gas collecting main pipe; connecting cooling agent inlet on residue carbon separating box to cooling system; connecting residue carbon separating box to the special discharger of organic matter converting furnace; opening combustible gas discharging port and residue carbon inlet valve on the residue carbon separating box; opening valve of combustible gas collecting main pipe; powering on the special discharger power supply; continuously discharging organic carbon at speed of 900 kg/hour at 400 degrees C, simultaneously starting cooling system controller, and reducing the high-temperature residue carbon to safe temperature; replacing separating box every 50 minutes in the normal condition; powering off power supply of special discharger; powering off the cooling system controller; closing organic carbon inlet valve and combustible discharging valve; closing valve of combustible gas collecting main pipe; relieving all the connections, using forklift to convey the residue carbon separating box to the appointed storage yard; and cooling residue carbon separating box in the storage yard, and selling to market.