Abstract: A bulk material separator having an at least substantially coaxial arrangement, includes an essentially rotationally symmetric, vertically oriented separator jacket (1) having in the upper section (11) an exit port (12) for air and light bulk material fractions and a narrowing section (15) followed by an expanding guide funnel (14), a downwardly oriented bulk material feed tube (2) extending into the top of the separator jacket (1) and ending in the region of the narrowing section (13), a displacement body (5) arranged coaxial with the bulk material feed tube (2) and arranged at least in the region of the guide funnel (14) and having an upwardly pointing conical tip (51), a container (6) having a separator air inlet port (61) and surrounding the guide funnel (14) and the displacement body (5). The bulk material feed tube (2) has a conically expanding mouth region (23), and the conical tip (51) of the displacement body (5) is immersed at least partially in this mouth region (23).