The invention discloses a convenient and fast industrial furnace. A heat preservation assembly is arranged on the outer side of a furnace body. One end of a gas extracting pipe is connected with a vacuum pump. A silver-plated film is evenly arranged on the outer side of a glass barrel. A supporting assembly is installed on the outer side of the furnace body. A positioning groove is formed in the position, corresponding to the position of a positioning circle, of the furnace body. A rolling wheel is welded to one end of each positioning rod. An adjustment assembly is installed on the middle portion of a rotating shaft. A positioning ring is placed in an adjustment groove. A guide opening is formed in the position, corresponding to a regulation rod, on the top face of a supporting base. An adjustment wheel is welded to the end, close to a ratchet wheel, of the rotating shaft. Before the convenient and fast industrial furnace conducts heating, air between the glass barrel and the furnacebody is completely pumped out through a vacuum pump, and the portion between the glass barrel and the furnace body is kept in the vacuum state; thermal conductivity of vacuum and the glass barrel is poor, thermal radiation is reflected back by the silver-plated film through specular reflection, the heat loss is reduced, the thermal efficiency is improved, energy is saved, and the aim of energy conservation is achieved; and the furnace body can be inclined, the movement range of the furnace body is wide, and the inner portion and the outer portion of the furnace body can be conveniently cleaned.