The electrical drum-type separator for separating a mixture of electrically non-conductive and conductive particles, comprising a housing (1) having a drum (3) mounted therein for rotation about a vertical axis, serving as a precipitation electrode, means (5) for feeding a mixture of loose materials onto the peripheral surface of the drum, at least two corona-discharge electrodes (10) for charging particles of the mixture of loose materials in the electric field set up between each corona-discharge electrode and a portion of the peripheral surface of the drum (3), and brushes (15) for sweeping non-conductive particles off the peripheral surface of the drum, equalling in number the corona-discharge electrodes. The corona-discharge electrodes (10), and brushes (15) are spaced substantially uniformly about the peripheral surface of the drum (3) underlied by receptacles (17,18,19) equalling in number the corona-discharge electrodes (10), arranged in the paths of the streams of electrically conductive particles, aggregates of electrically conductive and non-conductive particles, and non-conductive particles.