From Mandriva Community Wiki

[edit] To add an entire folder of fonts using drakfont

1. Open drakfont from the Mandriva Control Center or by using the command: drakfont (you will be asked for the root password).
2. Click on Advanced Options->Add
3. A file selection box will pop up. On the left side, browse to the folder that you wish to add.
4. In the text entry box below the file listing on the file selection box, remove the words "Select the font file or directory and click on Add"
5. The folder you just added will now be listed in Drakfont. Click the Install List button to install the fonts.