We extend the recently proposed Kerr/CFT correspondence to examine the dual
conformal field theory of Kaluza-Klein black hole. For the extremal
Kaluza-Klein black hole, the central charge and temperature of the dual
conformal field are calculated, and the microscopic entropy calculated by using
Cardy formula agrees with the Bekenstein-Hawking entropy of extremal
Kaluza-Klein black hole. For the non-extremal case, we investigate the hidden
conformal symmetry of Kaluza-Klein black hole by studying the near-region wave
equation of a neutral massless scalar field, and find the left and right
temperatures of dual conformal field theory. Furthermore, the entropy of
non-extremal Kaluza-Klein black hole is reproduced by using Cardy formula.Comment: 13pages, no figure, published versio