The invention relates to a sampling probe 100 for a suction device M for sampling granular bulk materials G by core taking and suction in separate air flows (arrows C). According to the invention, this probe 100 consists of three juxtaposed ducts, a central duct 110 and two side ducts 120 and 121, in which three air flows circulate in counterflow, one upwards in the central duct 110 (black arrows C) and the other two downwards in the side ducts 120 and 121 (white arrows C). Application: grain suction devices. <IMAGE>
