Dust removal filler, fouling collection pan and gas cleaning device

A dust removal filler, comprising:

• a plurality of wave plates (63) and a plurality of partition plates (64) alternately stacked to form a plurality of rows of flow channels (61) wherein:
• each row of flow channels is formed by a wave plate attached to one of the plurality of partition plates,
• each flow channel (61) extends obliquely with respect to a vertical direction and has a windward surface (611) and a leeward surface (612),
• and each flow channel has disposed therein a waveform plate (62) having a peak portion attached to the leeward surface (612) thereof, wherein the waveform plate divides the flow channel to a flow passage between the waveform plate and the windward surface and a closed space between the wave plate (62) and the leeward surface,
• the dust removal filler is configured such that during operation:
• in each flow channel, a gas stream containing dust flows through the flow passage without entering the closed space, wherein dust is separated from the gas stream and adheres to a concave portion of a lower surface of the waveform plate (62) under the action of Van Der Waals force;
• dust accumulates under the action of Coulomb force to form dust aggregates;
• when the gravity of the dust aggregates is greater than the adhesion force thereof, the dust aggregates fall onto the windward surface (611) of the flow channel (61) and slide downward along the windward surface (611).