A device for removing dust from pharmaceutical tablets or capsules, comprising a dust removal column with a first ramp for controlled conveying in a helical shape; the first ramp is composed of a conveying conduit which has walls leak-light wiih respect to the tablets or capsules and which comprises an inlet in the lower part of the column and an outlet in the upper part of the column, this column comprising a chamber which aspirates dust from tablets or capsules and which has walls that are leak-tight with respect to the conveyed tablets or capsules, a passage for aspiration of dust from tablets or capsules is provided, and the whole assembly formed by the conveying conduit and the aspiration chamber is configured such that the column is leak-tight with respect to the dust from the tablets or capsules.