Environment-friendly blackboard with automatic dust suction function

The environment-friendly blackboard with the automatic dust suction function comprises a blackboard concave support, two pairs of lifting blackboards, a support shaped like a Chinese character'ri 'and a supporting block shaped like a Chinese character'ri', the supporting block shaped like a Chinese character'ri 'is installed on the blackboard concave support, and the two pairs of lifting blackboards are installed on the blackboard concave support through lifting limiting structures. A dust collecting structure is mounted on the support block shaped like the Chinese character'ri 'and the blackboard concave bracket; a dust cleaning structure is mounted on the support shaped like the Chinese character'ri' and the two pairs of lifting blackboards; the utility model relates to the technical field of teaching equipment, the two pairs of lifting blackboards are magnetically repelled through the dust cleaning structure, and the plurality of cleaning brushes are extruded to the two pairs of lifting blackboards through