To solve the problem that a snow melting machine such as road heating utilizing an oil burner, electricity or the like in addition to the snow melting machine of a burning type hot heating boiler using oil fuel or the like from the outside for melting snow by a conventional snow melting machine exists but the boiler produces exhaust gas, further drain mixing molten snow and exhaust gas gives bad influence on a natural environment and a human body, the snow melting machine of road heating or the like utilizing electricity does not produce the exhaust gas, electric power consumes much and efficiency is very inferior.

Snow or a lump of snow is put in a rotary drum, the temperature of air contained in the snow or the lump of the snow is increased with friction heat and impact produced at the time, further the temperature of air contained in the snow or the lump of the snow is increased with friction heat due to the rotation force of the rotary drum, and the snow or the lump of the snow is melted by the air of the high temperature. Power consumption is supplied by charging electric power due to a solar generator and an accessory generator and the electric power of 100 Volt power source for home to a charging battery by an automatic electric power control device and supplying and controlling it as the power source of each drive motor.