A separating device for separating liquid from gas, in particular air, having a housing featuring - a connecting means (24, 28) with which the separating device can be connected separably to a connecting head of a machine using a rotary and/or plug-in movement with respect to an imaginary connecting axis, - at least one gas inlet for the gas to be cleaned from liquid, - at least one gas outlet for the gas cleaned from liquid, said gas outlet circumferentially surrounding the connecting axis, - and at least one liquid drain for separated liquid, - wherein at least one separating medium through which the gas can flow is disposed in the housing, said separating medium separating the at least one gas inlet from the at least one gas outlet with respect to the gas flow, - wherein the at least one gas outlet and the at least one liquid drain exit the housing on the side on which the connecting means (24, 28) is disposed, - wherein the at least one liquid drain exits a liquid collecting chamber disposed on a clean gas side of the separating medium and circumferentially surrounding the connecting axis and the at least one gas outlet, - wherein a pipe section leads to the at least one gas outlet in the housing interior space of the housing, said pipe section circumferentially surrounding the connecting axis and at least partially forming a radial inner delimitation of the liquid collecting chamber, characterized in that the pipe section is functionally separated from mechanical force-transmitting connecting elements of the connecting means (24, 28), wherein the pipe section is realized separately from the actual connecting means (24, 28) with respect to a mechanical force transmission, wherein the pipe section extends exclusively in the housing interior space of the housing, wherein the at least one gas outlet is designed as a connection receptacle for a connecting piece, wherein the connecting piece is on the side of the connecting head, wherein the connecting piece is or can be connected to the connecting head in a fixed or separable manner. - a connecting means (24, 28) with which the separating device can be connected separably to a connecting head of a machine using a rotary and/or plug-in movement with respect to an imaginary connecting axis, - at least one gas inlet for the gas to be cleaned from liquid, - at least one gas outlet for the gas cleaned from liquid, said gas outlet circumferentially surrounding the connecting axis, - and at least one liquid drain for separated liquid, - wherein at least one separating medium through which the gas can flow is disposed in the housing, said separating medium separating the at least one gas inlet from the at least one gas outlet with respect to the gas flow, - wherein the at least one gas outlet and the at least one liquid drain exit the housing on the side on which the connecting means (24, 28) is disposed, - wherein the at least one liquid drain exits a liquid collecting chamber disposed on a clean gas side of the separating medium and circumferentially surrounding the connecting axis and the at least one gas outlet, - wherein a pipe section leads to the at least one gas outlet in the housing interior space of the housing, said pipe section circumferentially surrounding the connecting axis and at least partially forming a radial inner delimitation of the liquid collecting chamber,