Device for moving and emptying at least one waste-holding bin inside a waste collection container, comprising: - a first rod and a first guide suitable to be fixed to the container, said first rod extending longitudinally along a first reference axis and said first guide having a shaped profile including at least one rectilinear portion and a subsequent second curvilinear portion which extends from the rectilinear portion towards said container; - a first hollow cylinder mounted around the first rod, bidirectionally slidable along said first reference axis between a lowered initial position and a raised final position; - at least one carriage which comprises means for hooking said at least one waste-holding bin, and is adapted to be moved between a rest position and a position for emptying the hooked at least one waste-holding bin; - a first connection device which is connected to and is movable together with said carriage, and comprising a guided element suitable to slide along said shaped profile of the first guide; - a second connection device configured to connect the first hollow cylinder to the carriage so that they move together, and further to allow the rotation, about a second axis transverse to the first axis, of the carriage together with a hooked waste-holding bin relative to the first hollow cylinder and to the first guide when the guided element slides along said second curvilinear portion, wherein the hooking means comprise clamping means configured to be actuated and tighten a hooked waste-holding bin after lifting the carriage from the initial position and when the guided element enters said subsequent second curvilinear portion, and wherein said clamping means further comprise a second guide having a cam profile, said second guide being connected to and solidly movable with the first hollow cylinder, with the cam profile facing the carriage, the device being characterized in that said second connection device comprises a pair of flanges fixed externally to the first hollow cylinder and on which the second guide is fixed laterally, a bearing mounted around an end portion of the carriage, an anchoring plate connected to said pair of flanges, a jaw-like body suitable to embrace externally said bearing and to be clamped on said anchoring plate. - a first rod and a first guide suitable to be fixed to the container, said first rod extending longitudinally along a first reference axis and said first guide having a shaped profile including at least one rectilinear portion and a subsequent second curvilinear portion which extends from the rectilinear portion towards said container; - a first hollow cylinder mounted around the first rod, bidirectionally slidable along said first reference axis between a lowered initial position and a raised final position; - at least one carriage which comprises means for hooking said at least one waste-holding bin, and is adapted to be moved between a rest position and a position for emptying the hooked at least one waste-holding bin; - a first connection device which is connected to and is movable together with said carriage, and comprising a guided element suitable to slide along said shaped profile of the first guide; - a second connection device configured to connect the first hollow cylinder to the carriage so that they move together, and further to allow the rotation, about a second axis transverse to the first axis, of the carriage together with a hooked waste-holding bin relative to the first hollow cylinder and to the first guide when the guided element slides along said second curvilinear portion, wherein the hooking means comprise clamping means configured to be actuated and tighten a hooked waste-holding bin after lifting the carriage from the initial position and when the guided element enters said subsequent second curvilinear portion, and wherein said clamping means further comprise a second guide having a cam profile, said second guide being connected to and solidly movable with the first hollow cylinder, with the cam profile facing the carriage, the device being characterized in that said second connection device comprises a pair of flanges fixed externally to the first hollow cylinder and on which the second guide is fixed laterally, a bearing mounted around an end portion of the carriage, an anchoring plate connected to said pair of flanges, a jaw-like body suitable to embrace externally said bearing and to be clamped on said anchoring plate.