PURPOSE: To increase safety, to facilitate handling, and to heat and incinerate garbage with high efficiency, by a method wherein a garbage charge port is formed in a side above an incinerating chamber, an exhaust port is formed in a side on the opposite side, and a door for a charge port is prevented from being heated by means of a discharged heat.

CONSTITUTION: Garbage charged in an incinerating chamber 14 is heated and incinerated by an electric beater, and heat generated by heating and incineration is also transmitted to a garbage charge port 13 located thereabove. Since a door 16 for an inlet 13a is recessed outwardly of the inner wall 18 of the incinerating chamber 14, the door 16 is prevented from being directly heated, and the door 16 is prevented from overheating. Air through a feed port 19 enters the incinerating chamber 14 and produces high temperature exhaust gas, but since the discharged gas flows through the garbage charge part 13 located above the incinerating chamber and is discharged. through a discharge port 15 formed in a rear side, the door 16 for the charge port 13a situated on the front side is prevented from being directly heated by means of exhaust gas, and ensures safety. Further, no charge port is formed in the part of a top plate 20 formed by the upper surface of a casing body 12 and the part of the top plate is formed in a flat manner, and therefore the upper surface of the top plate 20 can be freely used.