A method for handling material in a pneumatic material conveying system includes at least one input point of material, a material conveying pipe, connected to an input point, and a separating device or a container, in which the material to be transported is separated from the transporting air. A device is provided for achieving a pressure difference and/or a transporting air flow in the conveying pipe at least during the transportation of material. In the method the separating device is a deep collection container-separating device, into which material is conveyed from input points via a conveying pipe, and in that in the emptying phase the collection container is lifted with lifting means and the material that has collected in the collection container is emptied via an openable and closable aperture arranged in the bottom part of the collection container. A separating device and a material conveying system are provided.