I have never tried to install CentOS 4 (it's 15 years old, wow), but I have found a RHEL 4 installation guide and it should be possible to do that:
- You need to prepare bootable ISO image from the ISO #1 (see section 2.4.2.Making an Installation BootCD-ROM from the guide):
cp -r <path-to-cd>/isolinux/ <path-to-workspace>
chmod u+w isolinux/*
mkisofs -o file.iso -b isolinux.bin -c boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -R -J -v -T isolinux/
- Copy all the CentOS ISO files to a partition on a secondary drive, you should be able to use these ISOs as a installation source during installation in Installation Method → Hard Drive (see section 4.6.Installing from a Hard Drive from the guide).
I don't know if this will work for CentOS, but it might and I didn't find any installation guide for CentOS 4. I would strongly recommend trying anything else than installing 15 years old CentOS, but if this is the only way...
I'm also not sure if CentOS 4 will run on Hyper-V -- support for it was added with kernel 2.6.32 and CentOS 4 has only 2.6.9.