I'm going to try and gather what you're asking from the title.
Yes, you can build SFML2 for 32-bit Linux from 64-bit Linux. I actually just did this. I don't know how to do this from the command line, but if you edit the CMakeLists.txt in the SFML root directory, add in set(CMAKE_CXX_FLAGS "-m32") and cmake will compile it in 32-bit.