A waste collection device configured to remove magnetically-sensitive particles from the air includes a main body, a collection mechanism, an air inlet mechanism, an air exhaust mechanism, and a discharge mechanism. The main body includes a cover, an electric controller, a partition, and a cavity. The partition divides the cavity into a first cavity and a second cavity. The collection mechanism includes a plurality of dust deposition portions received in the first and second cavities. Each dust deposition portion is electrically powered and includes a plurality of dust deposition plates. The air inlet mechanism includes a first wind shield coupled to the first cavity and a second wind shield coupled to the second cavity.