No, there is no portable version of Kingsoft Office. I have checked its official website, but the portable version couldn't be found. There are 3rd party websites that host portable versions of known applications, but I wouldn't recommend using them, since the packages could be bundled with offers and malware.
If you have an antivirus installed, then you can use them to download an unofficial portable version.
Google Search / Portable versions: https://goo.gl/BOUOUC