Three-dimensional industrial dust collector

The utility model provides a three-dimensional industrial dust collector and belongs to the field of dust collectors. A storage cavity is formed in one side of the bottom of the collection box, and an opening and closing door for blocking the storage cavity is installed on the collection box; the dust collection assembly comprises a dust collection cavity located above the storage cavity, a stepped annular groove communicating with the dust collection cavity is formed in the upper end of the collection box in a penetrating mode, a connecting ring abutting against the stepped annular groove is placed in the stepped annular groove, and a collection net cylinder is fixedly connected to the inner wall of the connecting ring; and an upper cover abutting against the connecting ring is in threaded connection with the interior of the stepped annular groove, the upper cover is connected with a dust collection head through a pipeline assembly, and a draught fan communicating with the dust collection cavity is installed