A cleaning device for an electrical appliance, comprising: a cleaning bowl for receiving a part (Ea), needing to be cleaned, of the electrical appliance; a container for storing a cleaning liquid to be fed into the cleaning bowl, a cleaning liquid feeder configured to feed the cleaning liquid in the container into the cleaning bowl, and an overflow passage for returning cleaning liquid from the cleaning bowl into the container, a bottom plate forming a bottom space, above a bottom face of the container, between the bottom plate and the bottom face, the bottom plate dividing a space in the container into an upper space and the bottom space as a gap space that spreads over a bottom of the container, characterized in that the cleaning device comprises a partition wall that divides the upper space into a storing space and a part of a trapping space, the storing space in which the cleaning liquid feeder is placed, is a space for mainly storing the cleaning liquid, the trapping space (7a, 7c) is a space for trapping dirt and waste included in the cleaning liquid from the overflow passage, the part of the trapping space is a space that allows the cleaning liquid including dirt and waste from the overflow passage to flow into the gap space, and constitute the trapping space along with the gap space, a gap as an outlet of the trapping space is formed between an end of the bottom plate and the inner wall of the container, the gap communicates with the storing space, and the cleaning device is configured so that the cleaning liquid entering the container from the overflow passage flows, into the storing space above the second bottom plate, through the gap space and the gap. a cleaning bowl for receiving a part (Ea), needing to be cleaned, of the electrical appliance; a container for storing a cleaning liquid to be fed into the cleaning bowl, a cleaning liquid feeder configured to feed the cleaning liquid in the container into the cleaning bowl, and an overflow passage for returning cleaning liquid from the cleaning bowl into the container, a bottom plate forming a bottom space, above a bottom face of the container, between the bottom plate and the bottom face, the bottom plate dividing a space in the container into an upper space and the bottom space as a gap space that spreads over a bottom of the container, characterized in that the cleaning device comprises a partition wall that divides the upper space into a storing space and a part of a trapping space, the storing space in which the cleaning liquid feeder is placed, is a space for mainly storing the cleaning liquid, the trapping space (7a, 7c) is a space for trapping dirt and waste included in the cleaning liquid from the overflow passage, the part of the trapping space is a space that allows the cleaning liquid including dirt and waste from the overflow passage to flow into the gap space, and constitute the trapping space along with the gap space, a gap as an outlet of the trapping space is formed between an end of the bottom plate and the inner wall of the container, the gap communicates with the storing space, and the cleaning device is configured so that the cleaning liquid entering the container from the overflow passage flows, into the storing space above the second bottom plate, through the gap space and the gap.