How to Create multiple Document Uploader in Client Object Model?

Yes. I think you need to use an HTTP PUT to send the file to the server. Then, having sent it, you'll need to retrieve and set it's details using the client object model.

To upload a file, you can use something like:

WebRequest request = WebRequest.Create( "http://somedestination" + "/" + filename);
ICredentials creds;
//Set your credentials
request.Credentials = creds;
request.Method = "PUT";
byte[] buffer = new byte[1024];
using (Stream stream = request.GetRequestStream())
{
    using (FileStream fs = new FileStream(filepath, FileMode.Open, FileAccess.Read))
    {
        for (int i = fs.Read(buffer, 0, buffer.Length); i > 0; i = fs.Read(buffer, 0, buffer.Length))
        {
            stream.Write(buffer, 0, i);
        }
    }
}
HttpWebResponse response = (HttpWebResponse)request.GetResponse();