Abstract: Comprises a bowl provided with a porous bed of a granular material (1), and means of emptying (3), which can be connected to the pipes of a drain installation; water irrigation device, disincrustant and/or disinfectant to dilute and wash away the stools and for cleaning the device; a grill (4), mounted beneath the bed and having suitable mesh size; a lift-up cover (5) made up of a hollow body provided with diffusing orifices (6) for water, descaling and/or disinfectant product, articulated onto the bowl (1), means (12) for feeding air to the cover (5), for drying the interior of the device; and descaling and/or disinfectant product dispensing device. The lift-up cover (5) adopts a lowered cleaning position in which the water irrigation and/or drying device actuate, and a raised operational position, in which the irrigation device are deactivated and in which the animal can defecate. The device can be installed in unmovable position in a dwelling house or communal area.