The invention discloses a simple dedusting box which comprises a shell body, wherein a first box body is fixedly connected with an inner cavity of the shell body, a fan is fixedly connected to the left side of the top of the first box body, an air outlet of the fan penetrates to the left side of the shell body, the top, arranged on the right side of the fan, of the first box body is fixedly connected with activated carbon filter cotton, and the top of the activated carbon filter cotton is fixedly connected with the top of the inner cavity of the shell body. By means of matched use among the activated carbon filter cotton, a first opening, a second box body, a third box body, a second opening, a first water guiding pipe, a spray head, a filtering plate, a water pump, a second water guidingpipe, medium-efficiency filter cotton, initial-effect filter cotton, an air inlet pipe and a filter bag, the simple dedusting box disclosed by the invention solves the problems that an existing simplededusting box has a poorer dedusting effect in dedusting air to cause poorer user work environment quality. The simple dedusting box has the advantages of good dedusting effect and convenience for auser to use, and practicability of the simple dedusting box is improved.