Rotary damping device for electrical household appliance, such as a washing machine 1 or a dryer, where the device 18 comprises an arm 20, 21 articulated according to a principal articulation axis 23, 26, 28, optionally by means of at least one principal rotational damper 40, particularly a friction damper. The device 18 is characterized in that it comprises at least one secondary body 30 articulated with respect to an secondary axis of articulation by means of a secondary rotational damper 41, particularly a friction damper, and being connected, in particular mechanically, to an arm 20, 21 of the device 18.