An extractor device for coffee grounds that substantially consists of a tubular frame (10), inside which is a casing (11) fixed to the frame (10) and comprising a gear motor (12) preferably the low-voltage type, the lower part of the tubular frame (10) being open to allow the possibility of attaching a container bag (13) to collect the coffee grounds from above, the motor (12), positioned inside the casing (11) whose upper part terminates with a conical shape (11′), comprising a shaft (14) attached to the extraction device (15) which substantially consists of a blade (16) with two or more sectors.