The invention relates to a swill treatment barrel and belongs to the technical field of public hygiene application. When juice removing treatment needs to be carried out on swill, a barrel cover is closed, a juice removing key is pressed, a power device pushes a pressing plate through a telescopic arm to move upwards to a set position, and juice in the swill is extruded out and filtered through a filtering plate on the inner barrel wall, flows into a juice collecting tank, and flows into a juice storage container through a juice guide pipe to be stored; when oil-water separating needs to be carried out on the juice, a worker presses an oil-water distributing switch, an oil-water separator starts working, sucks the juice in the juice storage container through a juice conveying pipe and carries out oil-water separating, separated water is discharged through a water outlet pipe, and separated oil is discharged through an oil outlet pipe after being metered through an oil gauge. According to the swill treatment barrel, the swill can be treated into swill residues and juice water fast through extruding, and oil-water separating is carried out on the juice; meanwhile, the generated swill oil can be metered so that quantitative statistics can be carried out on the swill oil, and control can be convenient.