Filter device resistant bottom nozzle and lower nozzle to waste using the device

A filter (30) of bottom nozzle comprising: a plurality of plates (31) attached unit on; a channel through-flow between the joined plates adjacent unit is formed; the flow channel includes a plurality of entries (314) flow separate straight section, and a plurality of outlets (315) flow separate straight section, and subchannels (316) flow connected to section straight flow entries and the cross section of flow outlets; and an output section of each of the input flow cross section in the center is divided into two subchannels flow, respectively; the two sub-flow channels communicate with two adjacent outputs from the flow outlets straight section respectively; and an input section of each of the flow outlets straight section in the center is combined with two sub-flow channels, respectively.