A garbage disposing device having a collapsible cylindrical main body having an upper end face inclined at such an angle as to be capable of flowing water droplets downward. A flat box-shaped member partitions the inside of the main body into a plurality of vertical chambers. The top end of the member protrudes above the main body. The member has a plurality of perforations in a wall surface thereof. An opening/closing lid is hingedly connected to the upper side of the main body and is attached thereto along the downward slope of the upper end face. Water evaporated from garbage is discharged to the outside through the perforations of the flat box-shaped member. Water which condenses on the inner surface of the opening/closing lid can be introduced along the inclined surface of the lid and then collected into a water receiving port or into grooves of a board core formed in the main body. A plurality of partitioned chambers can be used alternately and continuously for effective disposal of garbage.