This utility model relates to the field of dust removal equipment, specifically disclosing a concrete feeding inlet for reducing dust emissions. The inlet includes a funnel with several baffles at its opening. On the same side of each baffle, an adjusting wheel, a lever, and a pull rod are arranged. Moving the pull rod changes the tilt angle of the baffles via the lever and adjusting wheel. This design allows for the simultaneous flipping of multiple small baffles. Due to the small swing amplitude of the baffles, the funnel's opening and closing speed is fast, resulting in a more rapid adjustment process. This quickly closes the funnel, confining dust inside, which is then uniformly removed using a negative pressure extraction device. The combination of baffles, adjusting wheel, lever, and pull rod in this design is simple, reliable, low-cost, and economical.