The invention discloses a gas and 
solid separator of a recirculating 
fluidized bed boiler, which comprises a downstream 
flue and an upstream 
flue which are partitioned by a guiding 
flue gas up-down replicating film type screen, wherein the downstream flue and the upstream flue are communicated with storage bins hermetically installed below the downstream flue and the upstream flue through a turning channel, the front upper part of the gas and 
solid separator is provided with a 
flue gas inlet, the back upper part of the gas and 
solid separator is provided with a 
flue gas outlet, and four walls of the gas and solid separator are all heated water-cooling walls integrated with the boiler; and the gas and solid separator also comprises a uniform flow separating 
pipe bundle positioned on the turning channel, the upper end of the uniform flow separating 
pipe bundle on the turning channel is communicated with the guiding 
flue gas up-down replicating film type screen, and the lower end of the uniform flow separating 
pipe bundle on the turning channel is communicated with a lower transverse container. The invention also discloses a recirculating 
fluidized bed boiler containing two sets of gas and solid separators. The recirculating 
fluidized bed boiler has the advantages of wide application range, advanced process, simple manufacturing and installation, energy saving, consumption reduction and obvious emission reduction.